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## Re: PSPP linear regression (reference category).

**From**: |
John Darrington |

**Subject**: |
Re: PSPP linear regression (reference category). |

**Date**: |
Thu, 29 Sep 2016 20:19:32 +0200 |

**User-agent**: |
Mutt/1.5.23 (2014-03-12) |

On Thu, Sep 29, 2016 at 10:58:30AM -0400, Jack Drew wrote:
Thanks for the speedy response, Alan.
To be clear: if memory serves SPSS lets you specify the reference value for
a categorical variable. So for a variable with 0/1/2 values, you can
specify '0' as the reference category.
We try to ensure that procedure in SPSS should also work in PSPP. Obviously
that
doesn't always happen but that is the goal. Some command or subcommands are
missing from PSPP.
The SPSS manual is here:
ftp://public.dhe.ibm.com/software/analytics/spss/documentation/statistics/22.0/en/client/Manuals/IBM_SPSS_Statistics_Command_Syntax_Reference.pdf
In the REGRESSION section, I don't see a /REFERENCE subcommand or anything
similar, but perhaps I have misunderstood you. Can you tell us which
subcommands
of REGRESSION are missing that you would like to use?
J'
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