You can confirm the format of the new variable in Display 3.10.
Display 3.10 Output produced by user-defined format
Obs animal conc brood1 brood2 brood3 total cbrood3
31 31 235 4 13 6 23 some
32 32 235 6 10 5 21 some
33 33 235 2 5 0 7 none
34 34 235 6 0 6 12 some
35 35 235 6 13 8 27 some
36 36 235 6 0 10 16 some
37 37 235 7 0 6 13 some
38 38 235 4 2 9 15 some
39 39 235 6 8 7 21 some
40 40 235 7 0 10 17 some
3.4 Selecting or Stratifying an Analysis by Values of a
Variable
The BY statement is used to specify an analysis of a data set stratified by levels of a
variable.It is often usedwith th ...
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