Homework

• Hands-on Exercises from Textbook
  • Ormsby Exercise 6a: Classifying Features by Standard Methods
    • When you do step 15, your settings must be method=quantile, classes=3, columns=25.
    • If your map does not display after you have set a color ramp classification, you need to activate that layer (right click the layer, select Activate).
    • Show map at Step 21, as on p. 146.

  • Ormsby Exercise 6b: Classifying Features Manually
    • Show map at Step 13, as on p. 154.

  • Ormsby Exercise 6c: Mapping Density
    • In Step 9, the dot may be hard to see but it is there.
    • Show dot density map, Step 13, p. 161.

  • Ormsby Exercise 6d: Using Graduated and Chart Symbols
    • In Step 9, double click on the first symbol and change the size from 4 to 6. Then double click on the largest symbol and change size from 18 to 16.
    • In Step 12, be careful to activate the Power frame or you will not see the pie charts later.
    • Show pie chart map, Step 23, p. 174.

• Be prepared to answer these questions from Ormsby, Chapter 6 (Classifying Features and Rasters):

  CHAPTER 6: CLASSIFYING FEATURES AND RASTERS
  1. Explain the four major types of maps using classification. P. 134-135.
  2. Explain the six ArcGIS methods of classifying a feature. P. 136
  3. How do you set classifications in ArcMap? Pp. 138-140
  4. What do the x and y axes represent in the Classification window histogram? Pp. 141
  5. How can you format the numeric labeling of classes in the toc? Pp. 144-145
  6. In Layer Properties, Symbology Tab, what does checking the "Show class ranges using feature values" box do? P. 145
  7. How can you manually change a classification cut point? P. 151
  8. How do you manually change the color of a given class? Pp. 152-153
  9. What does "normalization" mean in ArcGIS? P. 156
  10. How do you normalize an attribute? P. 156-158
  11. How do you convert a color gradient map to a dot density map? Pp. 158- 159
  12. What do you do if you want dot density by a feature (countries) but do not want the feature borders to show? P. 159-160 
  13. How do you get dots not to display in, say, lakes? Pp. 161
  14. How do you create a graduated symbol map? Pp. 164-168
  15. How do you create a pie chart or bar/column or stacked bar/column chart map? Pp. 170-174
  

Explore

• Microsoft Excel Maps

  • Mapping with Mapland and Microsoft Excel
  • MapInfo Products. The leading alternative to ArcGIS. Not available in lab.