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Re: st: Calculate the mean of y if there are many similar x
Not sure whether you are trying to get the group mean of y, grouped by x.
If yes, collapse can do the job, resulting in a data set of 3573
observations and two variables: group mean of y and the corresponding
On Thu, 17 Mar 2005 20:44:50 -0800 (PST), Eik Leong Swee
> Hello. I have a problem here trying to sort my data. I have 2 variables y and x. Each one is of
> length 15000. However, y is unique but x is not i.e. for some values of y, there are more than one
> x. Specifically, there are 3573 unique values of x. I wish to take the mean of y for those x's
> that are the same, so that I end up only with a unique set of 3573 (y,x). I can either manually
> compute the mean 3573 times, or hopefully someone out there knows a command I can use. THANKS A
> LOT in advance!
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