[gradsusr] running the ttest.equal_variances.gs

[Ricardo Hallak]

Hi,

I suppose you can display correctly any data for the two .ctl files. If the problem happens only when you run the script, maybe your script has some division by 0 (zero).
It can happen when you compute small values and use it in another definitions, as is the case for such significance tests.

So, one hint is to take a look for defined divisions in your script. Try a detailed analysis or some debugging process.

Good luck,
Ricardo

On Sat, 23 Mar 2013 02:15:30 -0700 (PDT), kombo kai wrote
>

 Hi grad user
> I am running the script for   ttest.equal_variances.gs.  fsignificance level of  0.01 and find the  cutoff t value. 
> Wen I come to the grads script and try to open my to .ctl files as 
> open d:/vorticity/stddata.ctl
> open d:/vorticity/umst7811.ctl
> I tried to chnage the details of xi,x2, s1and s2 to fit my data 
> when I execute the script the grads crash out without giving any information.
> I have tried several ways doing the same .
> I am suspecting one problem that my stndata.ctl has six vatiables of equal TDEFF, but I fail to tell the grads to pick which varialble
> is any one with a surgestion on how I can do this?
> regards
> kaikombo
> 
>

Ricardo Hallak

Departamento de Ciências Atmosféricas (ACA) 
Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG) 
Universidade de São Paulo (USP) 
Rua do Matão, 1226 - Cidade Universitária - São Paulo SP 05508-900 
Phone.: +55 (11) 3091-2850; 3091-4703 
Fax: +55 (11) 3091-4714

 
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