Re: Pspp-users Digest, Vol 177, Issue 2

[Ben Pfaff]

It would be easy enough for PSPP to see that the _expression_ has string type, and therefore give the new variable string type too. The reason it doesn't work that way is that it's not always possible to know the maximum width of an _expression_ that has string type, but SPSS and PSPP require string variables to have a fixed width.

It's a poor error message. I'll make a note to improve it.

On Thu, Mar 4, 2021 at 1:49 PM Ricardo Mejias <ricardomejias@hotmail.com> wrote:

I inserted STRING ResidenceZipcodes (A5). in the code and the error message went away and this new variable did get all the digits beyond 5 truncated.

What confused me is that the original ResidenceZipcode showed on the variables table to be a string variable.  I assumed that the source variable, not the resulting variable is what had to be a string variable and that it would make the resulting variable automatically a string variable too.  I am a former SAS programmer, and that is how it was in SAS.

Thank you very much for the help.

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From: Pspp-users <pspp-users-bounces+ricardomejias=hotmail.com@gnu.org> on behalf of pspp-users-request@gnu.org <pspp-users-request@gnu.org>
Sent: Thursday, March 4, 2021 4:07 PM
To: pspp-users@gnu.org <pspp-users@gnu.org>
Subject: Pspp-users Digest, Vol 177, Issue 2

 

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Today's Topics:

   1. Re: Error Message on SUBSTRG String Function (Frans Houweling)


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Message: 1
Date: Thu, 4 Mar 2021 22:07:43 +0100
From: Frans Houweling <fhouweling@email.it>
To: pspp-users@gnu.org
Subject: Re: Error Message on SUBSTRG String Function
Message-ID: <90adf4df-5ba0-15c9-be6f-92032b606e68@email.it" target="_blank">90adf4df-5ba0-15c9-be6f-92032b606e68@email.it>
Content-Type: text/plain; charset="windows-1252"; Format="flowed"

Hi Ricardo,

  ResidenceZipcodes is a new variable here, and is therefore assumed to
be numeric.

Unless it was your intention re-assign to ResidenceZipCode, you need to
declare the variable as a string:

STRING ResidenceZipcodes (A5).

HTH

frans


On 3/4/21 9:43 PM, Ricardo Mejias wrote:
> Using a Substr string function on a string variable (see the screen
> shots below) I get an error message saying: "the _expression_ has string
> type, but a numeric value is required here."Did I do something wrong
> or is this a bug?
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> I am using GNU pspp 1.4.1-g79ad47 with Windows 10
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