Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: Computing semipartial correlations


From   Richard Williams <[email protected]>
To   [email protected]
Subject   st: Computing semipartial correlations
Date   Thu, 11 Dec 2003 11:54:05 -0500

The pcorr routine uses the following formula to compute partial correlations:

t/sqrt(t^2 + N - K -1) where N = Sample size and K = # of X variables

This is not the most intuitive formula in the world, but it works! I would like to modify the program to compute semipartial correlations. Does anybody know of a similarly straightforward formula that would do this? pcorr runs a regress command and then uses the saved estimates to do its calculations. Thanks for any input.


-------------------------------------------
Richard Williams, Associate Professor
OFFICE: (574)631-6668, (574)631-6463
FAX: (574)288-4373
HOME: (574)289-5227
EMAIL: [email protected]
WWW (personal): http://www.nd.edu/~rwilliam
WWW (department): http://www.nd.edu/~soc

*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/




© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index