The OUTPUT statement saves statistics and BY variables in an output data set. When you use a BY statement, each observation in the output data set corresponds to one of the BY groups. Otherwise, the output data set contains only one observation.
You can use any number of OUTPUT statements in the UNIVARIATE procedure. Each OUTPUT statement creates a new data set to contain the statistics specified in that statement. You must use the VAR statement with the OUTPUT statement. The OUTPUT statement must contain a specification of the form keyword=names or the PCTLPTS= and PCTLPRE= options. See Example 4.7 and Example 4.8.
You can use the OUT= option to specify the name of the output data set:
A keyword=names specification selects a statistic to be included in the output data set and gives the names of new variables that contain the statistic. Specify a keyword for each desired statistic, followed by an equal sign, followed by the names of the variables to contain the statistic. In the output data set, the first variable listed after a keyword in the OUTPUT statement contains the statistic for the first variable listed in the VAR statement, the second variable contains the statistic for the second variable in the VAR statement, and so on. If the list of names following the equal sign is shorter than the list of variables in the VAR statement, the procedure uses the names in the order in which the variables are listed in the VAR statement. The available keywords are listed in Table 4.14.
Table 4.14: Statistical Keywords
Keyword 
Description 

Descriptive Statistic Keywords 

CSS 
Corrected sum of squares 
CV 
Coefficient of variation 
GEOMEAN 
Geometric mean 
KURTOSIS  KURT 
Kurtosis 
MAX 
Largest value 
MEAN 
Sample mean 
MIN 
Smallest value 
MODE 
Most frequent value 
N 
Sample size 
NMISS 
Number of missing values 
NOBS 
Number of observations 
RANGE 
Range 
SKEWNESS  SKEW 
Skewness 
STD  STDDEV 
Standard deviation 
STDMEAN  STDERR 
Standard error of the mean 
SUM 
Sum of the observations 
SUMWGT 
Sum of the weights 
USS 
Uncorrected sum of squares 
VAR 
Variance 
Quantile Statistic Keywords 

P1 
1st percentile 
P5 
5th percentile 
P10 
10th percentile 
Q1  P25 
Lower quartile (25th percentile) 
MEDIAN  Q2  P50 
Median (50th percentile) 
Q3  P75 
Upper quartile (75th percentile) 
P90 
90th percentile 
P95 
95th percentile 
P99 
99th percentile 
QRANGE 
Interquartile range (Q3–Q1) 
Robust Statistic Keywords 

GINI 
Gini’s mean difference 
MAD 
Median absolute difference about the median 
QN 
, alternative to MAD 
SN 
, alternative to MAD 
STD_GINI 
Gini’s standard deviation 
STD_MAD 
MAD standard deviation 
STD_QN 
standard deviation 
STD_QRANGE 
Interquartile range standard deviation 
STD_SN 
standard deviation 
Hypothesis Testing Keywords 

MSIGN 
Sign statistic 
NORMALTEST 
Test statistic for normality 
SIGNRANK 
Signed rank statistic 
PROBM 
Probability of a greater absolute value for the sign statistic 
PROBN 
Probability value for the test of normality 
PROBS 
Probability value for the signed rank test 
PROBT 
Probability value for the Student’s t test 
T 
Statistic for the Student’s t test 
The UNIVARIATE procedure automatically computes the 1st, 5th, 10th, 25th, 50th, 75th, 90th, 95th, and 99th percentiles for the data. These can be saved in an output data set by using keyword=names specifications. You can request additional percentiles by using the PCTLPTS= option. The following percentileoptions are related to these additional percentiles: