Graphics Reference
In-Depth Information
Figure 7-13. Highlighting one item
Discussion
If you have a small number of items, as in this example, instead of creating a new column you
could use the original one and specify the colors for every level of that variable. For example, the
following code will use the
group
column from
PlantGrowth
and manually set the colors for
each of the three levels. The result will appear the same as with the preceding code:
