DATA FERTILIZER;
INPUT FEEDTYPE WEIGHTGAIN;
DATALINES;
1 46.20
1 55.60
1 53.30
1 44.80
1 55.40
1 56.00
1 48.90
2 51.30
2 52.40
2 54.60
2 52.20
2 64.30
2 55.00
;
ODS RTF;
PROC SORT DATA=FERTILIZER;BY FEEDTYPE;
PROC MEANS; VAR WEIGHTGAIN; BY FEEDTYPE;
TITLE 'Summary statistics by group';
RUN;
PROC MEANS; VAR WEIGHTGAIN; CLASS FEEDTYPE;
TITLE 'Summary statistics USING CLASS';
RUN;
ODS RTF CLOSE;
;