SPSS Statistics

 View Only
  • 1.  what can I use the loop index variable for?

    Posted Mon November 08, 2021 01:10 PM
    Hi everyone!

    I was trying to shorten my Syntax a little by using loops. However, when I tried, SPSS gave me an error warning.

    This is the code that works:
    compute v1_agg = 0.
    if (any(1, v1_a to v1z)) v1_agg = 1.
    if (any(2, v1_a to v1z)) v1_agg = 2.
    if (any(3, v1_a to v1z)) v1_agg = 3.
    if (any(4, v1_a to v1z)) v1_agg = 4.
    recode v1_agg (0=sysmis).
    EXECUTE.
    delete variables v1_a to v1_z.
    EXECUTE.​
    This is the code with the loop, that didn't work:
    compute v1_agg = 0.
    loop #i 1 to 4.
    if (any(#i, v1_a to v1_z)) v1_agg = #i.
    end loop.
    recode v1_agg (0=sysmis).
    EXECUTE.
    delete variables v1_a to v1_z.
    EXECUTE.​


    To me it seemed pretty straight forward to substitute the digits in my code with the index variable of a loop, but it didn't work. Instead I got this error message:
    (translating this from German into English so it might be slightly different)

    error 4840 in column 6. text: #i
    the command LOOP can include two optional clauses - one index clause in the form "variable = expression TO expression BY expression" and one conditional clause in the form of an if clause. The text found does not match either of the two forms.

    I assume you can't use the index variable as a placeholder for integers like that, but I am a little confused as to what is possible and what not or if I just made a different mistake altogether.

    I appreciate any help or tip :)

    best,
    Christoph






    ------------------------------
    Christoph Kulicke
    ------------------------------


  • 2.  RE: what can I use the loop index variable for?

    Posted Mon November 08, 2021 01:20 PM
    LOOP #i=1 to 4.​

    You forgot the equals sign.

    ------------------------------
    Rick Marcantonio
    Quality Assurance
    IBM
    ------------------------------



  • 3.  RE: what can I use the loop index variable for?

    Posted Thu November 11, 2021 03:35 AM
    Oh boy, sometimes it is really that simple huh?

    Thanks for the help and sorry to bother with such a dumb mistake ^^'

    ------------------------------
    Christoph Kulicke
    ------------------------------



  • 4.  RE: what can I use the loop index variable for?

    Posted Thu November 11, 2021 07:32 AM
    Not a problem.

    ------------------------------
    Rick Marcantonio
    Quality Assurance
    IBM
    ------------------------------