PSPP-BUG: [bug #64093] TTEST PAIRS dont allow same variable to paired in syntax

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?64093>

                 Summary: TTEST PAIRS dont allow same variable to paired in
syntax
                   Group: PSPP
               Submitter: None
               Submitted: Sun 23 Apr 2023 02:38:56 PM UTC
                Category: Syntax Parser
                Severity: 5 - Average
                  Status: None
             Assigned to: None
             Open/Closed: Open
                 Release: None
         Discussion Lock: Any
                  Effort: 0.00


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Follow-up Comments:


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Date: Sun 23 Apr 2023 02:38:56 PM UTC By: Anonymous
EXAMPLE: 

you have a1 a2 a3 paired conditions and want to test each other.

you must do that: a1-a2, a1-a3, and a2-a3

in syntax:

TTEST PAIRS a1 a1 a2 WITH a2 a3 a3 (PAIRED). 


However, PSPP throws an error saying that appears twice in variable list. 

I think that it is wrong to implement such test condition here (in paired
ttest) and generally in all paired tests in pspp. 


pspp GNU pspp 1.6.0-ge6b96c in linux bookworm.







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