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Re: dataset experiments
From: |
Ben Pfaff |
Subject: |
Re: dataset experiments |
Date: |
Sun, 21 Feb 2016 17:05:34 -0800 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Sun, Feb 21, 2016 at 10:47:16PM +0100, Frans Houweling wrote:
> >Experiment #1 ------------- Start up SPSS. Then, before you define any
> >variables or open any data files, Run a DATASET NAME command, like this:
> >DATASET NAME myfile. Does SPSS accept this or give an error and, if it
> >gives an error, what is it?
> SPSS 14 accepts this and displays "Untitled1 [myfile]" in the data editor.
OK, I did not expect that. I had the impression that a dataset had to
have some content before it really existed and could be named.
> >Experiment #2 ------------- Start up SPSS. Then, before you do anything
> >else, run a syntax file like this:
> >GET 'file1.sav'.
> >DATASET NAME file1.
> >DATASET DISPLAY.
> >GET 'file2.sav'.
> >DATASET DISPLAY.
>
> GET 'aggr7.sav'.
> DATASET NAME file1.
> DATASET display.
>
> Dataset Display
>
> Datasets
> | -------- |
> | file1(a) |
> | -------- |
> a Active dataset
>
> GET 'aggr8.sav'.
> DATASET DISPLAY.
>
> Dataset Display
>
> Datasets
> | ------------ |
> | file1 |
> | ------------ |
> | (unnamed)(a) |
> | ------------ |
> a Active dataset
OK, experiment #2 indicates that doing a GET creates a new unnamed
dataset, instead of replacing the current dataset. The documentation
sort of implies that, but it is not very clear.
How about experiment #3, then, to clarify what happens to an empty
dataset when GET executes, like this:
Experiment #3
-------------
Start up SPSS. Then, before you do anything else, run a syntax file like
this:
DATASET NAME file1.
GET 'file1.sav'.
DATASET DISPLAY.
Thanks again!