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Status Under review
Workspace SPSS Statistics
Created by Guest
Created on Jul 5, 2023

RELATED IDEAS

New system variables $NCASES, $NNUMERIC, and $NSTRING

The following are FAQs in SPSS discussion forums: 1) How can I get the total number of cases in my file?  2) How can I get the total number of variables?  For 2, sometimes people may want the number of string variables only or the number of numeric variables only.  Current solutions to these problems are relatively clunky, or involve using Python programmability etc., and that makes them fairly difficult for everyone but the most advanced users.  Life would be much easier if there were system variables similar to $CASENUM.  

Needed By Not sure -- Just thought it was cool
  • Guest
    Mar 19, 2026

    We have added the following work item to add support for these three system dataset constants and to build that support into both the back end and the front end dialogues such as Compute: https://github.ibm.com/SPSS/stats_java_ui/issues/9923.

    Reply
  • Guest
    Mar 19, 2026

    It is high time SPSS had some functionality like that provided by _n and _N in Stata! As the examples on the page linked below show, that would include $NCASES working within groups created by SPLIT FILE.

    https://stats.oarc.ucla.edu/stata/seminars/notes/counting-from-_n-to-_n/

    Reply

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