Calc'ing McFadden’s R2 in R
I have been wondering about the same thing recently. Is calculating an R2 useful for glms with poisson distribution useful? The standard glm summary outputs p-values and an AIC for the overall model, but there isnt anything that tells you how well the model explains the variation in the data. I assume there is a reason for this? -Burak
From: r-sig-ecology-bounces at r-project.org [r-sig-ecology-bounces at r-project.org] On Behalf Of kgorman [kgorman at sfu.ca]
Sent: Friday, April 01, 2011 3:38 PM
To: r-sig-ecology at r-project.org
Subject: [R-sig-eco] Calc'ing McFadden?s R2 in R
Sent: Friday, April 01, 2011 3:38 PM
To: r-sig-ecology at r-project.org
Subject: [R-sig-eco] Calc'ing McFadden?s R2 in R
Hello, I am wondering about calculating R2 values for logistic regression/glm models in R. I assume this is possible, but have not run across R code to do it. Thanks for any guidance! Kristen _______________________________________________ R-sig-ecology mailing list R-sig-ecology at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology