Just wondering if anyone can help a beginner - having trouble getting an R squared output from logistic regression in splus 6.2 student version. I get Deviance Residuals, Min 1Q Median 3Q Max, Coeff
Author: Frank E Harrell Jr <f.harrell@vanderbilt.edu>
Date: Thu, 24 Feb 2005 08:53:29 -0500
Hi all, Just wondering if anyone can help a beginner - having trouble getting an R squared output from logistic regression in splus 6.2 student version. I get Deviance Residuals, Min 1Q Median 3Q Max
R^2 is a measure of fit by least-squares, so not appropriate to logistic An F-test is not really appropriate either, unless there is evidence of over-dispersion and a quasi-likelihood is acceptable.
Author: Achaz von Hardenberg <achaz.von.hardenberg@usherbrooke.ca>
Date: Thu, 24 Feb 2005 14:52:00 +0100
Scrive Scott Clark <scott.clark@adelaide.edu.au>: Scott, F tests are no-sense doing a logistic regression. However, you can test the difference in Deviance with a Chi square test. Save the model obje
Author: Frank E Harrell Jr <f.harrell@vanderbilt.edu>
Date: Thu, 24 Feb 2005 09:28:09 -0500
But is occasionally still useful: @ARTICLE{cox92, author = {Cox, D. R. and Wermuth, N.}, year = 1992, title = {A comment on the coefficient of determination for binary responses}, journal = {The Amer