I would like to get R2 (and and adjusted R2) from an lm. I know I can compute R2 (SSreg/SStotal), but it would be nice to know if I could get if automatically, e.g. fit1<-lm(y~x) Rsq<-fit1$rSquare. R2.1.0 Patched under Windows 2000 Thanks, John John Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics Baltimore VA Medical Center GRECC and University of Maryland School of Medicine Claude Pepper OAIC University of Maryland School of Medicine Division of Gerontology Baltimore VA Medical Center 10 North Greene Street GRECC (BT/18/GR) Baltimore, MD 21201-1524 410-605-7119 - NOTE NEW EMAIL ADDRESS: jsorkin at grecc.umaryland.edu
Something like:> x = runif(10) > y = rnorm(x) > fm = lm(y~x) > summary(fm)[c("r.squared", "adj.r.squared")]$r.squared [1] 0.03385419 $adj.r.squared [1] -0.08691404 [They are computed by summary.lm(), not lm().] HTH, Andy> From: John Sorkin > > I would like to get R2 (and and adjusted R2) from an lm. I know I can > compute R2 (SSreg/SStotal), but it would be nice to know if I > could get > if automatically, e.g. > fit1<-lm(y~x) > Rsq<-fit1$rSquare. > > R2.1.0 Patched under Windows 2000 > > Thanks, > John > > John Sorkin M.D., Ph.D. > Chief, Biostatistics and Informatics > Baltimore VA Medical Center GRECC and > University of Maryland School of Medicine Claude Pepper OAIC > > University of Maryland School of Medicine > Division of Gerontology > Baltimore VA Medical Center > 10 North Greene Street > GRECC (BT/18/GR) > Baltimore, MD 21201-1524 > > 410-605-7119 > -- NOTE NEW EMAIL ADDRESS: > jsorkin at grecc.umaryland.edu > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > R-project.org/posting-guide.html > > >
John Sorkin wrote:> I would like to get R2 (and and adjusted R2) from an lm. I know I can > compute R2 (SSreg/SStotal), but it would be nice to know if I could get > if automatically, e.g. > fit1<-lm(y~x) > Rsq<-fit1$rSquare. > > R2.1.0 Patched under Windows 2000summary(fit1)$r.squared summary(fit1)$adj.r.squared -- Chuck Cleland, Ph.D. NDRI, Inc. 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 452-1424 (M, W, F) fax: (917) 438-0894