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Re: PSPP-BUG: PSPP Frozen While Performing a Variable Recode

From: John Darrington
Subject: Re: PSPP-BUG: PSPP Frozen While Performing a Variable Recode
Date: Sat, 16 Mar 2013 12:23:48 +0100
User-agent: Mutt/1.5.20 (2009-06-14)

On Thu, Mar 14, 2013 at 02:31:36PM -0400, Brian Battersby wrote:
     I am attempting to put together an on-line tutorial for PSPP.

That is good to hear.  Tutorial information for PSPP is lacking.  We need
more.   I look forward to seeing the finished work.

     Upon restarting, I see this error message:
     warning: `C:\[filepath]' near offset 0xc8f94: Unrecognized record 7,
     subtype 24. Please send a copy of this file, and the syntax which created
     it to address@hidden Other files work fine, as does the file for
     the same year downloaded from the GSS website.

I don't see this warning with the file you sent.  But if I read your email
correctly, you only got the warning with a different file.  Could you
please send the file which provokes that warning.  Then we can analyse it
and hopefully do something about it.

     I re-coded the variable "Zodiac," clicking on the "Old and New Variables"
     button from the "Recode into Different Variables" window. First, under "Old
     Value," I entered the range as 1-6, setting the "New Value" to 1. Then I
     entered the range as 7-9 under "Old Value," setting the "New Value" to 2. I
     change the name to RecZodiac, and click on OK.

     After re-coding a variable into different variables, the output window
     freezes, followed by a program freeze. 

I did some experiments myself, and there does indeed seem to be an unacceptable
delay when doing recodes from within the GUI.  It seems to be related to the
large number of variables you have in that file.  However it works almost 
instantaneously from the command line version.    So I suggest until this is
fixed you avoid the GUI or reduce the number of variables before recoding.
     Also, do you know if there is a way to alphabetize variables, as well as
     create scatter plots?

There are a number of ways to sort variables, but none of them are particularly
satisfactory.  For example, you could use FLIP, sort the dataset, and then FLIP
again.   Alternatively, you could recode to new variables, delete the originals
and rename the variables as desired.

Scatter plots are not currently available.

Thanks for the feedback.


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