proc sort data=sam_gl_&name;
SYMBOLGEN: Macro variable NAME resolves to A1
1207 by probeset_id;
1208 run;
SYMBOLGEN: Macro variable NAME resolves to A1
1209
1210
1211
1212 data DG&name._q;
SYMBOLGEN: Macro variable NAME resolves to A1
SYMBOLGEN: Macro variable NAME resolves to A1
1213 merge result&name sam_gl_&name (keep=q);
1214 by probeset_id;
1215 run;
ERROR: BY variable probeset_id is not on input data set WORK.SAM_GL_A1.
NOTE: The SAS System stopped processing this step because of errors.