Exercise 1 In this exercise you will create a map showing the percentage of Hispanic population of each block group, showing eight data breaks using equal intervals, an orange and purple color scheme, and including an aerial photo background. 1. Click on Population by Ethnicity in the Maps box on the upper left. This changes the map from the default view (which shows Total Population) to show Percent Hispanic. 1
2. Click on Advanced Map Options. This brings up various options to change how the information is presented on the map. 2
3. Click on the box below Data Classes and select 8. This changes how many groups the data are divided into from the default (which is 5 groups) to 8 groups. 3
4. Click on the box below Classification Type and select Equal Intervals. This changes how the 8 groups of data are created. The default, Natural Breaks, divides the data into groups based on clusters and gaps in the data. You ve changed to Equal Intervals, which divides the data into groups of equal size. 4
5. Click on the color scheme box below Click to Change Maps Color Scheme. This opens the Color Scheme dialog box, which allows you to choose what color scheme you want to use to display the data on the map. 5
6. Click on the box below Choose the Nature of Your Data and select Diverging. This allows you to change which type of color scheme you ll use. The default, Sequential, uses different shades of the same color to show the different amounts of each group of data. You ve selected Diverging, which uses different colors to allow the reader to see differences in different groups of data. 6
7. Select the first color scheme on the list, which contains shades of orange and purple. You ve selected a color scheme that uses shades of orange and purple to display the data. This allows the reader to look for shades of deep purple to know where the higher percentages of Hispanic population are, and shades of dark orange to know where lower percentages of Hispanic population are. Lighter shades of purple and orange show where Hispanic populations are closer to 50%. 7
8. Click on the Layers Options box at the lower right and select Aerial. This allows you to select various layers to display on the map. You re able to decide whether or not you want to show streets, Census tract boundaries, an aerial photo, and on-the-ground terrain. For this map you have chosen to show the aerial photo (as well as the streets and terrain, which are displayed by default). 8
9. Click, hold, and drag the Transparency Slider to the left until the number in the popup reads 0.5. This changes the transparency for the orange and purple data layer on the map. The more transparent the data layer is, the easier it is to see the aerial photo underneath it. 9
10. In the menu bar at the top, click Print Map at the top right, and then click on Export Map in the Print Map box that appears in the center of the screen. Clicking on Print Map brings up the Print dialog box. In this dialog box, you have the following options: Change the title of the map (by typing in the box next to Map title- by default, the title of this map will be Percent Hispanic), Add notes to the map (by typing in the box next to Map notes (there are no map notes by default) and; Choosing the size of the final map (either 8.5 by 11 or 11 by 17 ) and whether the map will be oriented in Landscape or Portrait. Clicking Export Map tells the computer that you re happy with your map title, notes (if there are any), size, and orientation, and that you re ready to print the map as a PDF. 10
11. When the export is complete, you will see Map export complete, click here to view written at the bottom of the dialog box. Click the words Map export complete, click here to view. This will open a PDF file of your map, which you can view, save to your computer, or send to a printer. 11
12. Enjoy your map! Your final map should look something like this. Enjoy! 12