ME 142 Engineering Computation I. Graphing with Excel

Transcription

1 ME 142 Engineering Computation I Graphing with Excel

2 Common Questions from Unit 1.2

3 HW See Homework Exercise Hints video Use ATAN to find nominal angle in each quadrant Use the AND logical operator to help determine which quadrant Use nested IF statements to help add appropriate value to nominal angle

4 HW On APPLE, problems generating correct CompData verification code

5 Excel 2010: Excel 2010 vs. 2013/16 Excel 2013/16:

6 How do you plot multiple curves that have different X-values on the same graph?

7 Plotting Multiple Curves with Different X Values Select data to create first curve and insert graph normally On Design Ribbon click on the Select Data icon Select Add to add a new series Select new X and Y series

8 Plotting Multiple Curves with Different X Values (cont) Series1 Series

9 Checkpoint Assessments Checkpoint Assessments should be treated as an quiz or exam: Timed assessment Limited resources No assistance from others Should not be taken in class NOT repeatable How Did I Do button enabled

10 Checkpoint Assessments This Checkpoint Assessment is CLOSED BOOK/NOTES with the exception of the following allowable resource materials: * One side of one 3" x 5" note card * Excel (no external files other than those provided) You may NOT consult with anyone concerning this Assessment. You may NOT use other resources such as the Internet, computers, homework, or textbooks. You are limited to 1 hour on the Assessment and it must be completed in a single sitting.

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12 HW Changing the number of digits displayed in trendline equation coefficients in Excel Right-click the trendline equation or the R-squared text, and then click Format Trendline Label. Click Number. In the Category list, click Number, and then change the Decimal places setting. Click Close.

13 Key Concepts Creating a Basic XY Scatter Graph Linking Chart Titles to a Cell Adding Data to an Existing Graph Plotting Multiple Curves Plotting Multiple Curves with Diff. X Values Adding a Trend Line Modifying the Graph

14 Creating a Basic XY Scatter Graph

15 What is the difference between an XY Scatter Graph and a Line Graph?

16 Creating a Basic XY Scatter Graph Excel supports many types of Graphs XY Scatter is most common in engineering Do not confuse with Line Graph To simplify graph creation process: Organize data into columns Omit any blank rows Pre-select data to be graphed

17 Example Problem Create an XY Scatter Graph:

18 Linking Chart Titles to a Cell

19 How do you link a chart title or chart label to a cell?

20 Example Problem Create an XY Scatter Graph: Link titles/labels to cells

21 Linking Chart Titles to a Cell Axis and chart titles can also be linked to cells Select the title in the graph Click on the formula bar and type in = Select the cell to link to

22 Adding Data to an Existing Graph Plotting Multiple Curves

23 How do you add data to an existing graph? How do you plot multiple curves on the same graph?

24 Adding Data to an Existing Graph Easiest way to add data is to select existing graph and drag highlighted range to new area Works to add both columns and rows Graph is automatically updated

25 Plotting Multiple Curves Selecting data prior to chart creation is easiest May also drag range to add additional curves

26 Example Problem Create an XY Scatter Graph: Link titles/labels to cells Add data to the existing graph: Add a second series to the existing graph:

27 Plotting Multiple Curves with Different X Values

28 How do you plot multiple curves that have different X-values on the same graph?

29 Plotting Multiple Curves with Different X Values Select data to create first curve and insert graph normally On Design Ribbon click on the Select Data icon Select Add to add a new series Select new X and Y series

30 Plotting Multiple Curves with Different X Values (cont) Series1 Series

31 Adding a Trend Line

32 What is a Trend line? How do you add a Trend line to an existing graph?

33 Adding a Trend Line

34 Common Graph Modification Tasks

35 Common Graph Modification Tasks Resizing /moving the graph Moving/Deleting the legend Changing axis scales Adding/Updating titles

36 Review Questions

37 Review Question Basic Graphs What type of graph is the following: A. Line Graph B. XY Scatter Graph C. Curve Graph D. Either A or B E. Cannot Tell from Given Information

38 Review Question Trendlines The only Trendline option supported by Excel is linear A. True B. False

39 Homework Help n Hints