It is not a problem.
It is telling you that the variance of 601 sample series was 0.0
This occurs when all values are constant
Sabeerali(sebi) wrote:
> Hello
>
> I am getting the warning as shown below. Is it a serious problem?
> warning:ttest: encountered 601 cases where var1 and/or var2 were less
> than or equal to 0. Output set to missing values in these cases
>
>
> Thanks in advance
>
>
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Received on Fri Sep 04 2009 - 08:01:36 MDT
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