Re: st: corr2data

[Richard Williams <Richard.A.Williams.5@ND.edu>]

At 01:48 PM 9/12/2008, Hema Mistry wrote:
> Dear all,
>
> Does anyone know with the corr2data command whether you can set a 
> lower and upper limit whilst keeping the same mean and sd?
>
> Also is there another command similar to corr2data (drawnorm also 
> has the same problems) which won't give me negative values and 
> produces the same mean and SD, but keeping the original values and 
> expanding on these values.
I suspect -corr2data- primarily exists because nobody at Stata ever 
wrote a -regressi- command, i.e. an immediate version of the 
-regress- command where you specify the means, correlations and 
standard deviations.  The uses and limitations of -corr2data- are 
spelled out on pages 8-10 of

http://www.nd.edu/~rwilliam/stats1/OLS-Stata9.pdf

I find it handy for replicating published regression analyses or for 
creating hypothetical data sets with certain desired properties, but 
it won't let you be picky about how it produces a data set with the 
specified means/corrs/sds.


-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
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EMAIL:  Richard.A.Williams.5@ND.Edu
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