On Sat, Oct 13, 2018 at 04:04:41PM +0200, Werner LEMBERG wrote:
> SORT CASES BY var1 [var2].
> SPLIT FILE LAYERED BY?? var1 [var2].
>
> T-TEST /TESTVAL=0
> ?????? /VARIABLES= dependent variables ???? /MISSING=ANALYSIS
> ?????? /CRITERIA=CI(insert your confidence level here, e.g. 0.95).
Very nice, thanks!
> Then you can use the means and the bounds of the confidence
> intervals to draw your own graphs outside PSPP.
How do I get the results of the T-TEST command shown on the console
into the current dataset so that I can export them to a CSV file?
If I understand the use case properly, I think that you can do what you
want with with an aggregate followed by a few simple compute commands:
AGGREGATE OUTFILE * MODE ADDVARIABLES
/BREAK=g
/Mean = mean(V)
/sd = sd(v)
/n = n(v)
.
compute ci_upper=mean + sd/sqrt(n).
compute ci_lower=mean - sd/sqrt(n).
list.
You might want to check out the continuous distribution functions too.
See section 7.7.10 of the user manual.
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