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From | Nick Cox <n.j.cox@durham.ac.uk> |
To | "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> |
Subject | RE: st: stat query |
Date | Fri, 19 Nov 2010 11:20:41 +0000 |
There was a Stata-based review in SJ-8-3 pr0041 . Speaking Stata: Corr. with confidence, Fisher's z revisited (help corrci, corrcii if installed) . . . . . . . . . . . . N. J. Cox Q3/08 SJ 8(3):413--439 reviews Fisher's z transformation and its inverse, the hyperbolic tangent, and reviews their use in inference with correlations Perhaps the most useful detail for Rich was the aside that atanh[r] = (1/2) logit[(1 + r)/2]. Hence scaling the correlations to fall inside [0,1] and logit modelling the result opens up many routes in Stata. This is evident otherwise, but it is reassuring nevertheless that the nice properties of Fisher's z are akin to those to logit. Nick n.j.cox@durham.ac.uk Richard Goldstein thank you very much (not sure how I forgot about this, but ...) Marcello Pagano > http://en.wikipedia.org/wiki/Fisher_transformation On 11/18/2010 2:21 PM, Richard Goldstein wrote: >> a client has told me that he thinks he will soon have a project where >> the dependent (response) variable will be a correlation coefficient; >> i.e., a "continuous" variable with the range restricted to [-1,+1]; >> >> any help, guidance, suggestions on what model might be appropriate for >> this would be greatly appreciated; similarly, any citations would be >> great appreciated * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/