1. 제 5장 기술통계 및 추론 PROC MEANS 절차 PROC MEANS <options> ;
VAR variables ;
BY variables ;
CLASS variable ;
FREQ variable ;
OUTPUT <OUT=SAS dsn> statistics <options> ;
RUN ;
* N, MISS, STD, MIN, MAX, MEAN, RANGE, SUM,
VAR, STDERR, CV, SKEWNESS, KURTOSIS, T, PRT

2. 예제 5.1)
/* MEANS1.SAS : MEANS PROCEDURE */
DATA A ;
INPUT HEIGHT ;
CARDS ; … ;
X=HEIGHT-170 ;
RUN;
PROC MEANS MEAN STD STDERR T PRT ;
VAR X ;
RUN ;

3. 예제 5.2) /* MEANS2.SAS : MEANS PROCEDURE */
OPTIONS PAGESIZE=50 NODATE ;
DATA A ;
INPUT RATING EXCESS PLACE $ DAY ;
CARDS ;
04 54 S N 1 …. ;
RUN ;
PROC MEANS ; TITLE3 ‘OUTPUT FROM MEANS PROCEDURE’ ;
PROC MEANS DATA=A MAXDEC=3 NMISS RANGE USS CSS T PRT ;
VAR RATING EXCESS ;
TITLE3 ‘RESQUESTED STATISTICS’ ; RUN ;
PROC SORT ; BY PLACE DAY ; RUN ;
PROC MEANS MAXDEC=3 ; BY PLACE DAY ; VAR RATING EXCESS ;
OUTPUT OUT=NEW MEAN=RMEAN EMEAN STDERR=RSE ESE ;
TITLE3 ‘ STATISTICS BY PLACE AND DAY’ ; RUN ;
PROC PRINT ROUND ; TITLE3 ‘NEW DATA SET ; RUN ;

4. UNIVARIATE 절차 UNIVARIATE 절차의 일반형 PROC UNIVARIATE <options> ;
VAR variables ;
BY variables ;
FREQ variable ;
OUTPUT <OUT=SAS dns> keyword=names ;
RUN ;
* PLOT, FREQ, NORMAL , PCTLEF

5. 예제 5.3)
*/ UNIVARIATE1.SAS : ANALYSIS OF CENSUS DATA */
DATA STATEPOP ;
INPUT STATE $ POP ;
LABEL POP=‘1970 CENSUS POPULATION IN MILLIONS’ ;
CARDS ;
ALA ALASKA 0.30 …. ;
RUN ;
PROC UNIVARIATE PLOT NORMAL ;
VAR POP ; ID STATE ; RUN ;

6. 예제 5.4)
/* UNIV2.SAS : ANALYSIS OF RANDOM DATA */
OPTIONS LINESIZE=65 PAGESIZE=50 NODATE ;
DATA NORMAL ;
INPUT X ;
CARDS ; …. ;
RUN ;
PROC UNIVARIATE PLOT ;
VAR X ; RUN ;

7. CORR 절차 CORR 절차 PROC CORR <options> ; VAR variables ;
WITH variables ;
BY variables ;
RUN ;
예제 5.1 )
PROC CORR ;
VAR A B C ;
VAR A B ;
BY X Y Z ;

8. TTEST 절차 TTEST 절차 PROC TTEST <options> ; CLASS variable ;
VAR variables ;
BY variables ;
RUN ;
예제 5.5) /* TTEST1.SAS : ANALYSIS OF GOLF DATA */
DATA SCORES ;
INPUT SEX $ SCORE ;
CARDS ;
F 75 F 76 F 80 F 77 F 80 F 77 F 73 M 82 M 80 M 85 M 85 M 78 M87 M82 ;
PROC TTEST ; CLASS SEX ; VAR SCORE ; RUN ;

9. 예제 5.6) 대응비교
/* TTEST2.SAS : PAIRED TEST */
DATA A;
INPUT ID PRETEST PORTTEST ;
DIFF=POSTTEST-PRETEST ;
CARDS ; ;
RUN ;
PROC MEANS MEAN STDERR T PRT ;
VAR DIFF ; RUN ;