Package flowq. October 5, 2018
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1 Type Package Title Quality control for flow cytometry Version Package flowq October 5, 2018 Author R. Gentleman, F. Hahne, J. Kettman, N. Le Meur, N. Gopalakrishnan Maintainer Mike Jiang Provides quality control and quality assessment tools for flow cytometry data. Depends R (>= ), methods, BiocGenerics, outliers, lattice, flowviz, mvoutlier, biodist, parody, RColorBrewer, latticeextra Imports methods, BiocGenerics, geneplotter, flowcore, flowviz, IRanges Suggests flowstats SystemRequirements ImageMagick License Artistic-2.0 biocviews Infrastructure, FlowCytometry, CellBasedAssays git_url git_branch master git_last_commit 5d44e38 git_last_commit_date Date/Publication R topics documented: flowq-package aggregatorlist-class binaryaggregator-class discreteaggregator-class evaluateprocess factoraggregator-class locateduplicatedparameters normailzesets numericaggregator-class outlier-class outlierresult-class outliers-methods
2 2 flowq-package preprocessflowlist qaaggregator-class qagraph-class qagraphlist-class qaprocess-class qaprocess.2dstatsplot qaprocess.boundaryplot qaprocess.cellnumber qaprocess.densityplot qaprocess.ecdfplot qaprocess.kldistplot qaprocess.marginevents qaprocess.timeflow qaprocess.timeline qaprocessframe-class qaprocesssummary qareport qdata rangeaggregator-class stringaggregator-class txtformatqaobject validprocess writeqareport writeqatextreport Index 38 flowq-package Quality control for flow cytometry Functions and methods for quality control and QA of flow cytometry data. This package heavily depends on the flowcore package. Package: flowq Type: Package Version: Date: License: Artistic Quality control is an important aspect when dealing with large amounts of complex high-throughput data. This package comprises functionality for efficient QA of flow cytometry data. Maintainer: Authors: R. Gentleman, F. Hahne, J. Kettman, N. Le Meur, M. Tang
3 aggregatorlist-class 3 References references go here flowcore ## examples go here aggregatorlist-class Class "aggregatorlist" A list of qaaggregators This class directly extends class "list" and is intended to exclusively hold objects of class qaaggregator, where each list item represents the outcome of a QA subprocess for a single flowframe. It mainly exists to allow for method dispatch and should never be populated manualy; instead, use the constructor qaaggregatorlist which checks for valid objects. Objects from the Class Slots Objects should be created using the constructor: aggregatorlist(...), where... are objects inheriting form class qaaggregator or a list of such objects. Extends.Data: Object of class "list", the list data Class "list", from data part. Class "vector", by class "list", distance 2. Methods initialize signature(.object = "aggregatorlist"): constructor show signature(object = "aggregatorlist"): print object details qagraph, writeqareport, qaprocess, qaaggregator
4 4 binaryaggregator-class showclass("aggregatorlist") binaryaggregator-class Class "binaryaggregator" Abstraction of a binary type of aggregator with possible states "passed" and "not passed" Objects from the Class Objects can be created by calls of the form new("binaryaggregator",...), or using the constructor binaryaggregator(passed), where passed is a logical scalar. Slots passed: Object of class "logical" indicating whether the process has passed the QA requirements Extends Class qaaggregator, directly. Methods show signature(object = "binaryaggregator"): print object details writelines signature(text = "binaryaggregator", con = "file", sep = "missing", usebytes="missing" write to HTML file connection qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline, discreteaggregator, factoraggregator, numericaggregator, stringaggregator, rangeaggregator showclass("binaryaggregator")
5 discreteaggregator-class 5 discreteaggregator-class Class "discreteaggregator" Abstraction of a discrete type of aggregator with possible states "passed", "not passed" and "warning" Objects from the Class Objects can be created by calls of the form new("discreteaggregator",...) or using the constructor discreteaggregator(x), where x is an integer value in [0,1,2] or a factor with levels 0, 1 and 2. Slots x: Object of class "factor" One in 0 (not passes), 1 (passed) or 2 (warning) passed: Object of class "logical" indicating whether the process has passed the QA requirements (not eveluated) Extends Class qaaggregator, directly. Methods show signature(object = "discreteaggregator"): print object details writelines signature(text = "discreteaggregator", con = "file", sep = "missing", usebytes="missin write to HTML file connection qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline, binaryaggregator, factoraggregator, numericaggregator, stringaggregator, rangeaggregator showclass("discreteaggregator")
6 6 evaluateprocess evaluateprocess Evaluate QA processes Re-evaluate an object of class qaprocess, e.g. for the case that a threshold value has changed. Usage evaluateprocess(process, thresh,...) Arguments process thresh An object of class qaprocess. The new treshold on which the process is to be evaluated.... Further arguments that are passed on to the individual functions for each QA process type. It is sometimes useful to update the state of aggregators in a qaprocess, for instances after changing the threshold value, without having to recompute all images, which can be very time consuming. Value An updated object of class qaprocess Note This function needs to be extended for new types of qaprocess. qaprocess, writeqareport ## Not run: data(gvhd) dest <- tempdir() qp1 <- qaprocess.timeline(gvhd[1:3], channel="fl1-h", outdir=dest, cutoff=1) evaluateprocess(qp1, thresh=4) ## End(Not run)
7 factoraggregator-class 7 factoraggregator-class Class "factoraggregator" Abstraction of a factor type of aggregator with possible states coded by the factor levels Objects from the Class Objects can be created by calls of the form new("factoraggregator",...) or using the constructor factoraggregator(x, passed), where x is a factor, or an object which can be coerced to a factor, and passed is a logical scalar. Slots x: Object of class "factor" coding the outcome state passed: Object of class "logical" indicating whether the process has passed the QA requirements Extends Class "qaaggregator", directly. Methods show signature(object = "factoraggregator"): print object details writelines signature(text = "factoraggregator", con = "file", write to HTML file connection sep = "missing", usebytes= "miss qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline, discreteaggregator, binaryaggregator, numericaggregator, stringaggregator, rangeaggregator, showclass("factoraggregator")
8 8 normailzesets locateduplicatedparameters Locate Duplicated Parameters Identifies dyes that are repeated arcross multiple flowsets using information provided in the description field of each flowframe. Usage locateduplicatedparameters(flowlist) Arguments flowlist A list of flowset This function is used internally by the qaprocess functions to identify dyes that are repeated across multiple aliquots. The function takes in a list of flowset and identifies stains that are repeated across multiple flowsets (aliquots). These parameters are expected to have the same distribution across aliquots and can be used for Quality control. The method looks for the information provided in the description field of each flowframe. Value An object of class qaprocess. Nishant Gopalakrishnan normalizesets normailzesets Locate Duplicated Parameters Aligns up peaks for parameters across multiple flowsets using the warpset method from the flowstats package. Usage normalizesets(flowlist,dupes,peaks=null)
9 numericaggregator-class 9 Arguments flowlist dupes peaks A list of flowset Stains that are to be aligned across multiple flowset Number of peaks expected in the distribution. If NULL is passed as input, The number of peaks to align are estimated from the distribution This function can be used to normalize dye information across multiple flowsets so that the peaks in the distributions align. The method makes use of information provided in the description field of each flowframe to align up floursecense nformation from multiple flowset. Value A list of objects of class flowset. Nishant Gopalakrishnan locateduplicatedparameters warpset numericaggregator-class Class "numericaggregator" Abstraction of a numeric type of aggregator for which possible states are coded by a numeric value Objects from the Class Objects can be created by calls of the form new("numericaggregator",...) or using the constructor numericaggregator(x, passed), where x is a numeric scalar, and passed is a logical scalar. Slots x: Object of class "numeric" coding the outcome state. passed: Object of class "logical" indicating whether the process has passed the QA requirements. Extends Class qaaggregator, directly.
10 10 outlier-class Methods show signature(object = "numericaggregator"): print object details writelines signature(text = "numericaggregator", con = "file", write to HTML file connection sep = "missing", usebytes= "mis qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline, discreteaggregator, factoraggregator, binaryaggregator, stringaggregator, rangeaggregator showclass("numericaggregator") outlier-class Virtual Class "outlier" A class to represent outlier tests Objects from the Class A virtual Class: No objects may be created from it. Slots test: Object of class "character" ~~ parameters: Object of class "ANY" ~~ Methods No methods defined with class "outlier" in the signature. References ~put references to the literature/web site here ~ ## showclass("outlier")
11 outlierresult-class 11 outlierresult-class Class "outlierresult" A class to hold the results of an outlier test Objects from the Class Objects can be created by calls of the form new("outlierresult",...). ~~ describe objects here ~~ Slots frameid: Object of class "character" ~~ filter: Object of class "list" ~~ test: Object of class "character" ~~ parameters: Object of class "ANY" ~~ Extends Class "outlier", directly. Methods No methods defined with class "outlierresult" in the signature. References ~put references to the literature/web site here ~ #showclass("outlierresult") outliers-methods ~~ Methods for Function outliers in Package.GlobalEnv ~~ ~~ Methods for function outliers in Package.GlobalEnv ~~ Methods x = "flowset" Desribe this method here
12 12 qaaggregator-class preprocessflowlist Preprocess a list of flowsets to add empty flowframes for patients in which certain aliquots are missing Usage The preprocessflowlist function takes in a list of flowsets as inputs and adds empty flowframes for patients in which data from certain aliquots are missing. The function is to be used to modify datasets to conform to a format that can be utilized by the multiple sample qaprocess functions. preprocessflowlist(flowlist) Arguments flowlist A list of flowset in which flowframes for certain patients are missing Value This function can be used to modify a list of flowsets to fill in empty flowframes for patients for which samples are missing. A list of objects of class flowset. Nishant Gopalakrishnan locateduplicatedparameters qaaggregator-class Abstraction of the possible outcomes of a QA process Virtual parent class for different types of QA aggregators In the context of this package, qaaggregators are objects that hold the outcome of a QA process. Each subclass implements its own writeline method, which creates the appropriate HTML code for a graphical representation of the object. Objects from the Class A virtual Class: No objects may be created from it.
13 qagraph-class 13 Slots passed: Object of class "logical" indicating whether the process has passed the QA requirements Methods No methods defined with class "qaaggregator" in the signature. qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline, binaryaggregator, discreteaggregator, factoraggregator, numericaggregator, stringaggregator, rangeaggregator showclass("qaaggregator") qagraph-class Class "qagraph" Abstraction of the graphical output created in the cause of a QA process Objects from the Class Slots Objects should be created using the constructor: qagraph(filename, imagedir, width, empty=false, pdf=true), where filename is a path to an image file, imagedir is the destination path for the images and the optional argument width is the final width to which the bitmap images are converted. The pdf argument controls wether vectorized versions of the image are to be produced. For the special case of an empty object without any images one can use option empty=true, in which case the constructor ignores all other arguments. During object instantiation the image file will be converted, resized and copied if necessary. filenames: Object of class "character" The paths to the image files, both the vectorized and unverctorized versions dimensions: Object of class "matrix" The dimensions of the image files, both for the vectorized and unvectorized version types: Object of class "character" The file extensions for both versions id: Object of class "character" A unique identifier for the images Methods initialize signature(.object = "qagraph"): constructor names signature(x = "qagraph"): returns the file name of the bitmap version of the image show signature(object = "qagraph"): print object details
14 14 qagraphlist-class qagraphlist, writeqareport, qaprocess showclass("qagraph") qagraphlist-class Class "qagraphlist" A list of qagraph objects This class directly extends class "list" and is intended to exclusively hold objects of class qagraph, where each list item represents the grapical output of a QA subprocess for a single flowframe. It mainly exists to allow for method dispatch and should never be populated manualy; instead, use the constructor qagraphlist which makes sure, that all image files are converted into the appropriate types and sizes and copied to the expected file location. Objects from the Class Slots Objects should be created using the constructor: qagraphlist(imagefiles, imagedir, width, pdf=true), where imagefiles are paths to image files, imagedir is the destination path for the images and width is the final width to which the bitmap images are converted. pdf can be used to toggle the generation of vectorized versions of the images..data: Object of class "list", the list data Extends Class "list", from data part. Class "vector", by class "list", distance 2. Methods initialize signature(.object = "qagraphlist"): constructor show signature(object = "qagraphlist"): print object details
15 qaprocess-class 15 qagraph, writeqareport, qaprocess showclass("qagraphlist") qaprocess-class Abstraction of the results of a QA process QA processes create graphical output which can be bundled in a single HTML document. This class stores all information that is needed by writeqareport to produce such HTML reports. Objects from the Class Slots Objects should be created using the constructor functions. See qaprocess.timeline and qaprocess.marginevents for details. When writing new QA process functions, the constructors qaprocessframe and qaprocess should be used. The latter expects the mandatory arguments id, type and frameprocesses and also accepts the optional arguments name and summarygraph. See the vignette of this package for details. id: Object of class "character", the objects unique identifier name: Object of class "character", the name of the process type: Object of class "character", the type of process frameids: Object of class "character", the identifiers of the flowsets to which the subprocesses are linkes summarygraph: Object of class "qagraph", a graphical summary of the processe s outcome frameprocesses: Object of class "list", more detailed information for each flowframe Methods initialize signature(.object = "qaprocess"): constructor qagraphlist, writeqareport, qaprocessframe showclass("qaprocess")
16 16 qaprocess.2dstatsplot qaprocess.2dstatsplot Creates a QA process for 2D summary statistic comparisons across multiple samples Usage This function takes a list of flowset as input and creates all necessary output for a 2DStatsPlot type QA process. Objects created by this function can be laid out as HTML using writeqareport. qaprocess.2dstatsplot(flowlist,dyes=c("fsc-a","ssc-a"), outdir="qareport",thresh=0.25,func=mean, sum.dimensions=null,det.dimensions= NULL,pdf=TRUE, name="2dstats",...) Arguments flowlist dyes outdir thresh func A list of flowset Flow parameters to be compared across multiple samples The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory every time. A numeric value between 0 and 1 which is used as a threshold by the outlier detection algorithm Summary statistic function to be applied to each parameter in a flowframe (mean,median etc) sum.dimensions The dimensions of summary plot generated in inches, default is NULL where the dimensions are automatically selected det.dimensions the dimensions of each sub image generated by the QA process in inches, default is NULL where the dimensions are automatically selected. pdf name Value boolen value determinining if pdf files or jpeg images will be produced by the QA process... Further arguments. The name of the process used for the headings in the HTML output. QA processes of type 2DStatsPlot detects differences in the value of a summary statistic such as the mean, median etc across multiple samples. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. An object of class qaprocess. Nishant Gopalakrishnan
17 qaprocess.boundaryplot 17 writeqareport, qareport, qaprocess, qaprocess.marginevents, qaprocess.densityplot, qaprocess.ecdfplot data(qdata) dest <- tempdir() par<-c("fsc-a","ssc-a","cd4","cd8") resmean <- qaprocess.2dstatsplot(qdata,dyes=par, outdir=dest, func=mean, thresh=0.28,pdf=true) resmean qaprocess.boundaryplot Creates a QA process for comparison of the percentage of boundary events for the specified parameters across multiple samples Usage This function takes a list of flowset as input and creates all necessary output for a BoundaryPlot type QA process. Objects created by this function can be laid out as HTML using writeqareport. qaprocess.boundaryplot(flowlist,dyes=null, outdir="qareport",cutoff=3,sum.dimensions=null, det.dimensions=null,pdf=true,name="boundary", side="both",...) Arguments flowlist dyes outdir cutoff A list of flowset Flow parameters to be compared across multiple samples. If set to NULL, all parameters that are duplicated across the list of flowset are identified and compared. The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory every time. A numeric value for the percentage of boundary events that is used by the process to identify samples that failed the QA process sum.dimensions The dimensions of summary plot generated in inches, default is NULL where the dimensions are automatically selected det.dimensions the dimensions of each sub image generated by the QA process in inches, default is NULL where the dimensions are automatically selected. pdf boolen value determinining if pdf files or jpeg images will be produced by the QA process
18 18 qaprocess.cellnumber name side The name of the process used for the headings in the HTML output. Object of class "character". The margin on which to evaluate the filter. Either upper for the upper margin or lower for the lower margin or both for both margins.... Further arguments. QA processes of type BoundaryPlot helps identify samples that have a large number of boundary events that must be removed by further gating before detailed analysis of the data. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. Value An object of class qaprocess. Nishant Gopalakrishnan writeqareport, qareport, qaprocess, qaprocess.densityplot, qaprocess.ecdfplot data(qdata) dest <- tempdir() resboundary <- qaprocess.boundaryplot(qdata, dyes=c("fsc-a","cd3"), outdir=dest, cutoff=3, pdf=true) resboundary qaprocess.cellnumber Create QA process of type cellnumber This function takes a flowset as input and creates all necessary output for a cellnumber type QA process. Objects created by this function can be laid out as HTML using writeqareport. Usage qaprocess.cellnumber(set, grouping=null, outdir, cfactor=2, absolute.value=null, two.sided = FALSE, name="cell number", sum.dimensions=null, pdf=true,...)
19 qaprocess.cellnumber 19 Arguments set grouping outdir cfactor A flowset. A character vector defining one of the variables in the phenodata of set used as a grouping variable. If this argument is used and if absolute.value is NULL, outlier detection will be performed within groups rather than across all samples. The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory for all of them. The outlier threshold at which the QA criterion is considered to have failed. This is essentially the factor of standard deviations away from the average number of cells per sample, either in both directions if two.sided=true or only towards smaller event numbers if two.sided=false. absolute.value An absolute event count below which the QA criterion is considered to be failed. If this argument is not NULL, cfactor and two.sided are ignored. two.sided name Perform a two-sided outlier detection, i.e., report both unproportionally high and low event numbers. The name of the process used for the headings in the HTML output. sum.dimensions The dimensions of the pdf deviced in inches used for the summary plot. pdf Value Logical indicating whether to create vectorized versions of images for this quality process. This should be set to FALSE if disk space is critical, since the pdf versions of the image consume much more space on the hard drive compared to the bitmap version.... Further arguments. QA processes of type cellnumber detect aberations in the number of events per sample. These are either determined dynamically as outliers from the typical distribution of event counts for the whole set, or, if absolute.value is not NULL, by an absolute cutoff value. If there is a natural grouping among the samples, this can be specified using the grouping argument. In this case, the outlier detection will be performed within its respective group for a particular sample. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. An object of class qaprocess. writeqareport, qareport, qaprocess, qaprocess.marginevents, qaprocess.timeflow, qaprocess.timeline ## Not run: data(gvhd) dest <- file.path(tempdir(), "flowq") qp <- qaprocess.cellnumber(gvhd, outdir=dest, cfactor=2)
20 20 qaprocess.densityplot qp ## End(Not run) qaprocess.densityplot Creates a QA process for comparisons of density plots across multiple samples Usage This function takes a list of flowset as input and creates all necessary outputs for a DensityPlot type QA process. Objects created by this function can be laid out as HTML using writeqareport. Arguments qaprocess.densityplot(flowlist,dyes=null,outdir="qareport", alpha=0.05,absolute.value=null,sum.dimensions=null, det.dimensions=null, pdf=true,name="density",...) flowlist dyes outdir alpha A list of flowset Flow parameters to be compared across multiple samples. If set to NULL, all parameters that are duplicated across the list of flowset are identified and compared. The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory every time. Outlier mislabeling rate absolute.value If provided, the absolute.value is used for the outlier detection and the alpha argument is ignored. defualt is NULL sum.dimensions The dimensions of summary plot generated in inches, default is NULL where the dimensions are automatically selected det.dimensions the dimensions of each sub image generated by the QA process in inches, default is NULL where the dimensions are automatically selected. pdf name Value boolen value determinining if pdf files or jpeg images will be produced by the QA process... Further arguments. The name of the process used for the headings in the HTML output. QA processes of type DensityPlot detects differences in the density plots across multiple samples. A summary measure based on the sum of the pairwise KL Distances of density plots is used as a parameter to flag patient panels that are potential outliers. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. An object of class qaprocess.
21 qaprocess.ecdfplot 21 Nishant Gopalakrishnan writeqareport, qareport, qaprocess, qaprocess.marginevents, qaprocess.ecdfplot, qaprocess.2dstatsplot data(qdata) dest <- tempdir() resdensityfsc <- qaprocess.densityplot(qdata, dyes=c("fsc-a","ssc-a"), outdir=dest, alpha=0.2, pdf=true) qaprocess.ecdfplot Creates a QA process for comparisons of ECDF s across multiple samples Usage This function takes a list of flowset as input and creates all necessary outputs for an ecdfoutliers type of QA process. Objects created by this function can be laid out as HTML using writeqareport. qaprocess.ecdfplot(flowlist, dyes=null,outdir="qareport", alpha=0.05, absolute.value=null,sum.dimensions=null, det.dimensions=null, pdf=true, name="ecdf",...) Arguments flowlist dyes outdir alpha A list of flowset Flow parameters to be compared across multiple samples. If set to NULL, all parameters that are duplicated across the list of flowset are identified and compared. The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory every time. Outlier mislabeling rate absolute.value If provided, the absolute.value is used for the outlier detection and the alpha argument is ignored. defualt is NULL sum.dimensions The dimensions of summary plot generated in inches, default is NULL where the dimensions are automatically selected det.dimensions the dimensions of each sub image generated by the QA process in inches, default is NULL where the dimensions are automatically selected.
22 22 qaprocess.kldistplot pdf name Value boolen value determinining if pdf files or jpeg images will be produced by the QA process... Further arguments. The name of the process used for the headings in the HTML output. QA processes of type ECDFPLot detects differences in the empirical cumulative distribution of flow parameters across multiple samples.a summary measure based on the sum of the pairwise KL Distances of ECDF plots across multiple samples is used as a parameter to flag patient panels that are potential outliers. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. An object of class qaprocess. Nishant Gopalakrishnan writeqareport, qareport, qaprocess, qaprocess.densityplot qaprocess.marginevents, qaprocess.2dstatspl data(qdata) dyes<- c("fsc-a","ssc-a") dest <- tempdir() resfscecdf <- qaprocess.ecdfplot(qdata, dyes=dyes, outdir=dest, alpha=0.4, pdf=true) resfscecdf qaprocess.kldistplot Creates a QA process for comparisons of KL Distances across multiple samples This function takes a list of flowset as input and creates all necessary outputs for an KLDistPlot type of QA process. Objects created by this function can be laid out as HTML using writeqareport. Usage qaprocess.kldistplot(flowlist,dyes=null,outdir="qareport", alpha=0.05, absolute.value=null,sum.dimensions=null, det.dimensions=null, pdf=true, name="kldist",...)
23 qaprocess.kldistplot 23 Arguments flowlist dyes outdir alpha A list of flowset Flow parameters to be compared across multiple samples. If set to NULL, all parameters that are duplicated across the list of flowset are identified and compared. The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory every time. Outlier mislabeling rate absolute.value If provided, the absolute.value is used for the outlier detection and the alpha argument is ignored. defualt is NULL sum.dimensions The dimensions of summary plot generated in inches, default is NULL where the dimensions are automatically selected det.dimensions the dimensions of each sub image generated by the QA process in inches, default is NULL where the dimensions are automatically selected. pdf name boolen value determinining if pdf files or jpeg images will be produced by the QA process... Further arguments. The name of the process used for the headings in the HTML output. QA processes of type KLDistPlot detects differences in the pairwise KL Distances of the flow parameters across multiple samples. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. Value An object of class qaprocess. Nishant Gopalakrishnan writeqareport, qareport, qaprocess, qaprocess.densityplot qaprocess.2dstatsplot qaprocess.boundaryplo data(qdata) dest <- tempdir() reskldist <- qaprocess.kldistplot(qdata, dyes=c("ssc-a","fsc-a"), outdir=dest, alpha=0.05, pdf=true) reskldist
24 24 qaprocess.marginevents qaprocess.marginevents Create QA process of type marginevents This function takes a flowset as input and creates all necessary output for a marginevents type QA process. Objects created by this function can be laid out as HTML using writeqareport. Usage qaprocess.marginevents(set, channels=null,side ="both", grouping=null, outdir, cfactor=2, absolute.value=null, name="margin events", sum.dimensions=null, det.dimensions=c(3,1), pdf=true,...) Arguments set channels side grouping outdir cfactor A flowset. A character vector of channel names for which margin events are to be recorded. Will use all available channels except for the time channel if NULL. Object of class "character". The margin on which to evaluate the filter. Either upper for the upper margin or lower for the lower margin or both for both margins. A character vector defining one of the variables in the phenodata of set used as a grouping variable. If this argument is used and if absolute.value is NULL, outlier detection will be performed within groups rather than across all samples. The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory for all of them. The outlier threshold at which the QA criterion is considered to have failed. This is essentially the factor of standard deviations away from the average number of cells per sample for the respective channel. absolute.value An absolute percentage of margin events below which the QA criterion is considered to be failed. If this argument is not NULL, cfactor is ignored. name The name of the process used for the headings in the HTML output. sum.dimensions The dimensions of summary plot generated in inches, default is NULL where the dimensions are automatically selected det.dimensions the dimensions of each sub image generated by the QA process in inches. pdf Logical indicating whether to create vectorized versions of images for this quality process. This should be set to FALSE if disk space is critical, since the pdf versions of the image consume much more space on the hard drive compared to the bitmap version. Setting the argument to FALSE will also speed up the process.... Further arguments.
25 qaprocess.timeflow 25 QA processes of type marginevents record the number of events that fall on the margins of the measurement range for each channel. Unproportionally high numbers of such events can indicate problems with the instrument settings or with compensation. These are either determined dynamically as outliers from the typical distribution of margin event percentages for the whole set, or, if absolute.value is not NULL, by an absolute cutoff value. If there is a natural grouping among the samples, this can be specified using the grouping argument. In this case, the outlier detection will be performed within its respective group for a particular sample. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. Value An object of class qaprocess. writeqareport, qareport, qaprocess, qaprocess.timeline, qaprocess.timeflow, qaprocess.cellnumber ## Not run: data(gvhd) dest <- tempdir() qp <- qaprocess.marginevents(gvhd, channels=c("fsc-h", "SSC-H"), outdir=dest) qp ## End(Not run) qaprocess.timeflow Create QA process of type timeflow This function takes a flowset as input and creates all necessary output for a timeflow type QA process. Objects created by this function can be laid out as HTML using writeqareport. Usage qaprocess.timeflow(set, outdir, cutoff=2, name="time flow", sum.dimensions=null, det.dimensions=c(3,2), pdf=true,...)
26 26 qaprocess.timeflow Arguments set outdir cutoff name A flowset. The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory for all of them. The threshold at which the QA criterion is considered to have failed. An absolute value in the timeline deviation score as computed by the timelineplot function. The name of the process used for the headings in the HTML output. sum.dimensions, det.dimensions The dimensions of the pdf device in inches used for the summary and the detailed plots. pdf Logical indicating whether to create vectorized versions of images for this quality process. This should be set to FALSE if disk space is critical, since the pdf versions of the image consume much more space on the hard drive compared to the bitmap version.... Further arguments. QA processes of type timeflow detect disturbances in the flow of cells over time. These indicate problems with the cell suspension, clogging of the needle or similar issues. If the flow rate is to high, the frequency of measuring cell douplettes increases. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. Value An object of class qaprocess. writeqareport, qareport, qaprocess, qaprocess.marginevents qaprocess.timeline, qaprocess.cellnumber ## Not run: data(gvhd) dest <- tempdir() qp <- qaprocess.timeflow(gvhd, outdir=dest, cutoff=1) qp ## End(Not run)
27 qaprocess.timeline 27 qaprocess.timeline Create QA process of type timeline This function takes a flowset as input and creates all necessary output for a timeline type QA process. Objects created by this function can be laid out as HTML using writeqareport. Usage qaprocess.timeline(set, channels=null, outdir, cutoff=1, name="time line", sum.dimensions=null, det.dimensions=c(3,2), pdf=true,...) Arguments set channels outdir cutoff name A flowset A character vector of channel names for which the qareport is to be produced. Will use all available channels except for the time channel if NULL. The directory to which the graphical output is to be saved. If multiple QA processes are to be combined, make sure to use the same directory for all of them. The threshold at which the QA criterion is considered to be failed. An absolute value in the timeline deviation score as computed by the timelineplot function. The name of the process used for the headings in the HTML output. sum.dimensions, det.dimensions The dimensions of the pdf device in inches used for the summary and the detailed plots. pdf Logical indicating whether to create vectorized versions of images for this quality process. This should be set to FALSE if disk space is critical, since the pdf versions of the image consume much more space on the hard drive compared to the bitmap version.... Further arguments. QA processes of type timeline detect unusal patterns in the acquisition of fluorescense and light scatter measurements over time. These are detected dynamically by identifying trends in the signal intensity over time or local changes in the measurement intensities. The underlying hypothesis is that measurement values are acquired randomly, hence there shouldn t be any correlation to time. For more details on how to layout qaprocess objects to HTML, see writeqareport and qareport. Value An object of class qaprocess.
28 28 qaprocessframe-class writeqareport, qareport, qaprocess, qaprocess.marginevents qaprocess.timeflow, qaprocess.cellnumber ## Not run: data(gvhd) GvHD <- transform(gvhd, "FL1-H"=asinh(`FL1-H`), "FL2-H"=asinh(`FL2-H`)) dest <- tempdir() qp <- qaprocess.timeline(gvhd, channel="fl1-h", outdir=dest, cutoff=1) qp ## End(Not run) qaprocessframe-class Class "qaprocessframe" Abstraction of subitems within a qqa process This class bundles graphs and aggregators for a single flowframe. This allows to create processes with subcomponents, where each item in the frameaggregators and framegraphs lists corresponds to one subprocess, which can be used, for instance, to create individual plots for each flow channel. For QA processes without subcomponents, these slots would simply not be populated. Objects from the Class Slots Objects should be created using the constructor: qaprocessframe(frameid, summaryaggregator, summarygraph, frameaggregators, framegraphs, details where frameid is the ID of the flowframe the process is linked to, summaryaggregator is an object inheriting from class qaaggregator which summarizes the outcome, summarygraph is an object of class qagraph which is the overview graph of the process for the whole frame, details is a list containing any additional information regarding the QA process, frameaggregators is an object of class aggregatorlist and framegraphs is an object of class qagraphlist. The latter two are the collections of aggregators and graphs for each subprocess. Only frameid and summaryaggregator are mandatory arguments. id: Object of class "character", a unique ID of the object frameid: Object of class "character", ID of the flowframe the process is linked to summaryaggregator: Object of class "qaaggregator", an aggregator summarizing the output of the process
29 qaprocesssummary 29 summarygraph: Object of class "qagraph", a graphical summary of the process frameaggregators: Object of class "aggregatorlist" a list of aggregators for the subprocesses framegraphs: Object of class "qagraphlist" a list of graphical summaries for the subprocesses details: A list for any additional information Methods initialize signature(.object = "qaprocessframe"): constructor qagraphlist, writeqareport, qaprocess showclass("qaprocessframe") qaprocesssummary Class "qaprocesssummary" An internal class to represent QA summaries Objects from the Class The class is internal and not ment for interactive use. Slots panels: Object of class "list" ranges: Object of class "matrix" summary: Object of class "list" mapping: Object of class "list" pnams: Object of class "character" overallsum: Object of class "matrix" Methods writelines signature(text = "qagraphlist", con = "file"): HTML output show signature(object = "qagraphlist"): print object details
30 30 qareport qareport Create HTML report using one or several QA process function(s) Usage This function combines all graphical output of multiple QA process functions for one flowset in a single hyperlinked HTML document. qareport(set, qafunctions, outdir = "./qareport", arglists, grouping = NULL,...) Arguments set Value qafunctions outdir arglists grouping A flowset A character vector of the names of QA process functions to be used The directory to which the HTML report is to be saved. lists of argument lists for each of the QA process functions specified via qafunctions A character scalar indicating a variable in the flowset s phenodata that is used as a grouping factor in the output.... Further arguments that are passed on to writeqareport. This is a simple convenience function to produce HTML QA reports for a single flowset given a list of QA process functions. For more fine-grained control use function writeqareport directly. An entry point to the output of this function can be found at outdir/index.html. The function is called for it s side effects qaprocess.marginevents, writeqareport, qaprocess, qaprocess.timeline ## Not run: data(gvhd) GvHD <- transform(gvhd, "FL1-H"=asinh(`FL1-H`), "FL2-H"=asinh(`FL2-H`)) dest <- tempdir() qareport(gvhd, c("qaprocess.timeline", "qaprocess.marginevents"), dest, list(list(channel="fl1-h", cutoff=1), list(channels=c("fl1-h", "FL2-H"), cfactor=4))) browseurl(file.path(dest, "index.html"))
31 qdata 31 ## End(Not run) qdata Data for demonstrating QA processes that compares dye parameters from each patient across multiple aliquots Usage Format A list of 8 flowset. Each flowset has data from four patients and each element in the list corresponds to an aliquot. data(qdata) The object contains a list of 8 objects of class flowset, each composed of 4 flowframes. Each flowframe correponds to a sample from an aliquot. This qdata dataset contains flouresence information for samples from four patients. The sample from each patient was separated into eight aliquots and each aliquot was stained using a different combination of dyes. For each patient, some dyes appear more than once in multiple alquots. These along with the Forward and Side scatter information can be used for Quality control. rangeaggregator-class Class "rangeaggregator" Abstraction of a range type of aggregator where possible states are within certain ranges (e.g. percentages) Objects from the Class Slots Objects can be created by calls of the form new("rangeaggregator",...) or using the constructor rangeaggregator(x, min, max, passed), where x, min and max are numeric scalars, with x in the range of [min, max], and passed is a logical scalar. min: Object of class "numeric", the range minimum max: Object of class "numeric", the range maximum x: Object of class "numeric", the value within the range passed: Object of class "logical" indicating whether the process has passed the QA requirements
32 32 stringaggregator-class Extends Class numericaggregator, directly. Class qaaggregator, by class "numericaggregator", distance 2. Methods show signature(object = "rangeaggregator"): print object details writelines signature(text = "rangeaggregator", con = "file", write to HTML file connection sep = "missing",usebytes ="missi qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline, discreteaggregator, factoraggregator, numericaggregator, stringaggregator, binaryaggregator showclass("rangeaggregator") stringaggregator-class Class "stringaggregator" Abstraction of a string type of aggregator for which possible states are indicated through a textual description Objects from the Class Slots Objects can be created by calls of the form new("stringaggregator",...) or using the constructor stringaggregator(x, passed), where x is a character scalar, and passed is a logical scalar. Extends x: Object of class "character" which is a textual description of the outcome passed: Object of class "logical" indicating whether the process has passed the QA requirements Class "qaaggregator", directly. Methods show signature(object = "stringaggregator"): print object details writelines signature(text = "stringaggregator", con = write to HTML file connection "file", sep = "missing", usebytes= "missing"
33 txtformatqaobject 33 qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline, discreteaggregator, factoraggregator, numericaggregator, binaryaggregator, rangeaggregator showclass("stringaggregator") txtformatqaobject Formats results contained in QA process objects into a data frame with appropriate row and column names Usage Formats information contained in QA process objects into a data frame which can then be easly written to a tab delimited file. Information contained includes the values used in the outlier detection, information whether the particular parameter passed the outlier test and the summary aggregator information. Arguments txtformatqaobject(qp) qp A qaprocess object Value A data.frame containing the values used in outlier detection, thresholds used, information regarding whether the parameter passed/failed the test as well as the summary aggregator information Nishant Gopalakrishnan writeqatextreport data(qdata) p1 <- qaprocess.marginevents(qdata[[1]], channels=c("fsc-a", "SSC-A"), outdir=tempdir(), name=paste("panel", 1, sep="_")) res <- txtformatqaobject(p1) res
34 34 writeqareport validprocess Validate a QAProcess object Check for integrety and existence of files specified in a qaprocess object. Usage validprocess(object) Arguments object A qaprocess object Value The function is called for it s side effects. qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline, writeqareport writeqareport Create HTML report for (lists of) qaprocess objects This function combines all graphical output of multiple QA processes for one or several flowsets in a single hyperlinked HTML document. Usage writeqareport(set, processes=null, globalprocess=null, outdir = "./qareport", grouping = NULL,pagebreaks=TRUE, pdf=true)
35 writeqareport 35 Arguments set processes globalprocess outdir grouping pagebreaks pdf A flowset or a list of several flowsets. A list of qaprocess objects or, in the case of multiple flowsets, a list of lists of qaprocess objects. See below for further details. A list of qaprocess objects generated by multipanel comparison qaprocess functions, when set is a list of flowsets. The directory to which the HTML report is to be saved. Each qaprocess object should have been created in the same directory. A character scalar indicating a variable in the flowset s phenodata that is used as a grouping factor in the output. A logical indicating whether the output should be on one long page, or split over several pages. A logical indicating whether vectorized versions of the images should be included. Setting this to TRUE implies that the individual QA processes have also been created with setting pdf=true. Value Both the information about graphical output generated as part of a QA process as well as the qunatitative or qualitative results are stored in objects of class qaprocess. The creation of such objects is abstracted in dedicated constructor function and the user should call these functions directly rather than creating qaprocess manually. writeqareport takes lists of such objects and combines their information in a unified HTML document. A grouping factor can be specified to indicate subgroups of the data. In the case of multiple panels, a list of flowsets can be given to writeqareport, and the function expects a list of lists of processes, where each process list is specific to one panel. An entry point to the output of this function can be found at outdir/index.html. The function is mostly called for it s side effects, that is, the generation of a HTML quality report in outdir. A URL to an entry point for browsing of the report is returned. qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline ## Not run: data(gvhd) GvHD <- transform(gvhd, "FL1-H"=asinh(`FL1-H`), "FL2-H"=asinh(`FL2-H`)) dest <- tempdir() qp1 <- qaprocess.timeline(gvhd, channel="fl1-h", outdir=dest, cutoff=1) qp2 <- qaprocess.marginevents(gvhd, channels=c("fl1-h", "FL2-H"), outdir=dest, cfactor=4) url <- writeqareport(gvhd, processes=list(qp1, qp2), outdir=dest, grouping="patient") browseurl(url)
36 36 writeqatextreport ## End(Not run) writeqatextreport Create tab delimited text files for (lists of) qaprocess objects This function combines all the results of multiple QA processes for one or several flowsets in a single tab delimited text document. Usage writeqatextreport(set, processes=null, globalprocess=null, filename="textreport.txt") Arguments set processes globalprocess filename A flowset or a list of several flowsets. A list of qaprocess objects or, in the case of multiple flowsets, a list of lists of qaprocess objects. See below for further details. A list of qaprocess objects generated by multipanel comparison qaprocess functions, when set is a list of flowsets. A character vector for the name of the file. Qunatitative or qualitative results are stored in objects of class qaprocess. writeqatextreport takes lists of such objects and combines their information in a tab delimited text document. In the case of multiple panels, a list of flowsets can be given to writeqareport, and the function expects a list of lists of processes, where each process list is specific to one panel. Value The function is mostly called for it s side effects, that is, the generation of a tab delimited text file.. Nishant Gopalakrishnan qaprocess.marginevents, qareport, qaprocess, qaprocess.timeline
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Exploring cdna Data. Achim Tresch, Andreas Buness, Tim Beißbarth, Florian Hahne, Wolfgang Huber. June 17, 2005
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Package EMDomics November 11, 2018 Title Earth Mover's Distance for Differential Analysis of Genomics Data The EMDomics algorithm is used to perform a supervised multi-class analysis to measure the magnitude
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Hacking FlowJo VX. 42 Time-Saving FlowJo Shortcuts To Help You Get Your Data Published No Matter What Flow Cytometer It Came From
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Package rtandem. June 30, 2018
Type Package Package rtandem June 30, 2018 Title Interfaces the tandem protein identification algorithm in R Version 1.20.0 Date 2018-04-24 SystemRequirements rtandem uses expat and pthread libraries.
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Version 1.2.0 Package diffcyt December 26, 2018 Title Differential discovery in high-dimensional cytometry via high-resolution clustering Description Statistical methods for differential discovery analyses
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Package mimager March 7, 2019 Version 1.6.0 Type Package Title mimager: The Microarray Imager Easily visualize and inspect microarrays for spatial artifacts. License MIT + file LICENSE LazyData TRUE Depends