= SAS Summary =

A procedure for data summarization. It is closely related to the [[SAS/Means|MEANS]] procudure.

<<TableOfContents>>

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== Usage ==

{{{
proc summary data=LIBREF.TABLE;
    var VAR;
run;
}}}



=== Class Statement ===

To show statistics for groups, use the '''`CLASS`''' statement.

{{{
proc summary data=LIBREF.TABLE;
    var VAR;
    class GROUPID;
run;
}}}

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== Output ==

The '''`OUTPUT`''' statement is useful for creating aggregated or higher-level data.

To aggregate the income of all cases in a group, try:

{{{
proc summary data=LIBREF.TABLE;
    class GROUPID;
    var INCOME;
    output out=LIBREF.GROUPTABLE sum=GROUPINCOME;
run;
}}}



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