The column heading for the variable Icebox in the listing is the variable's label (Refrigerators). One plot uses the first letter of the value of Seller as the plotting symbol. The other plot uses the letter R .
Weekly Sales of Stoves and Refrigerators 1
for the
First Six Weeks of the Year
Stove Refrigerators max min
3550.43 184.24
*--------------------------------------------------*
1313 3451 |R | K | |
728 2520 | | R | L |
222 3241 | R | | K |
184 2675 | | R | L|
2263 3160 | R | K | |
267 2805 | | R | L |
1787 3400 | R | K | |
275 2871 | | R | L |
2910 3550 |R | K | |
398 2730 | | R | L |
820 3386 | R | | K |
2242 2671 | | R L | |
*--------------------------------------------------*
|