Texas Instruments TITANIUM TI-89 - Manual (Page 567)

Statistics and Data Plots 567
Note: You can also use category values from a list variable instead of a column.
Note: To analyze the whole class, leave the Category input box blank. Any category
values are ignored.
To analyze: Include Categories:
10th grade girls {1}
10th grade boys {2}
10th grade girls and boys {1,2}
11th grade girls {3}
11th grade boys {4}
11th grade girls and boys {3,4}
all girls (10th and 11th) {1,3}
all boys (10th and 11th) {2,4}
Type the column number (or
list name) that contains the
category values.
Set this to YES.
Within braces { }, type the category values
to use, separated by commas. (Do not type
a column number or list name.)