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misaochan
Calcite | Level 5

What's the most efficient way to count the no. of distinct values of a particular variable in SAS EG? Google brings up the Data Exploration tool, but it seems to only work for datasets that aren't already in the SAS project. The dataset that I want to count is in the WORK library and is a product of a table join by the query builder.

Thank you!

1 ACCEPTED SOLUTION

Accepted Solutions
Reeza
Super User

If you only want EG then I suggest the summarize task twice. First time will get you the different counts of each level, the second will count the number of levels.

A different way is through a QUERY using count Distinct as a calculated variable.

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5 REPLIES 5
Reeza
Super User

Proc Freq nlevels option is the fastest that I know.

misaochan
Calcite | Level 5

Is that available as a task in EG? I meant a method specific to the UI in EG, if possible.

Reeza
Super User

If you only want EG then I suggest the summarize task twice. First time will get you the different counts of each level, the second will count the number of levels.

A different way is through a QUERY using count Distinct as a calculated variable.

ChrisHemedinger
Community Manager

There is a custom task that you can download.  It calculates the cardinality -- or number of distinct levels -- of each variable in your data set.

LINK: A custom task to check your data cardinality - The SAS Dummy

The UI looks like this:

http://blogs.sas.com/content/sasdummy/files/2013/10/cardtask.png

Chris

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misaochan
Calcite | Level 5

Thank you all. Smiley Happy I did not want to install the custom task as sometimes I work on a machine that isn't mine. But COUNT DISTINCT works well.

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