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st: RE: collapsed data or the original
From
"Nick Cox" <[email protected]>
To
<[email protected]>
Subject
st: RE: collapsed data or the original
Date
Thu, 24 Jun 2010 17:34:26 +0100
It shouldn't matter how you calculate a mean.
I don't think your claim can be discussed without an example.
Nick
[email protected]
riyadh shamsan
when you use collapse and examine the mean values they turn to be
different from the original set when using the by option.
So for example if you have a time series and it is a monthly data so
you will go:
summ y, by (time)
when you collapse your data and use the mean option your result won't
be the same. Is this correct?
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