Dear Iasonas,
> -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf Of Iasonas Lamprianou > Sent: August-20-10 5:55 AM > To: r-help@r-project.org > Subject: [R] Deviance Residuals > > Dear all, > > I am running a logistic regression and this is the output: > > glm(formula = educationUniv ~ brncntr, family = binomial) > > Deviance Residuals: > Min 1Q Median 3Q Max # αυτά είναι τα υπόλοιπα > -0.8825 -0.7684 -0.7684 1.5044 1.6516 > > Coefficients: > Estimate Std. Error z value Pr(>|z|) > (Intercept) -1.06869 0.01155 -92.487 <2e-16 *** > brncntrNo 0.32654 0.03742 8.726 <2e-16 *** > --- > Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 > > (Dispersion parameter for binomial family taken to be 1) > > Null deviance: 49363 on 42969 degrees of freedom > Residual deviance: 49289 on 42968 degrees of freedom > AIC: 49293 > > > I thought that the residuals should all be restricted in the range 0 to 1 > (since I am predicting a binary outcome). I read many posts on this list and > I realized that there are four(!?) different types of residuals. I need a > simple account of these four types of residuals, if anyone can help it will > be great. > > residuals(glm1, "response") Residuals on the scale of the response, y - E(y); in a binary logistic regression, y is 0 or 1 and E(y) is the fitted probability of a 1. As it turns out, response residuals aren't terribly useful for a logit model. > residuals(glm1, "pearson") Components of the Pearson goodness-of-fit statistic. > residuals(glm1, "deviance") Components of the residual deviance for the model. > residuals(glm1, "working") - especially this one confuses me a lot! Residuals from the final weighted-least-squares regression of the IWLS procedure used to fit the model; useful, for example, for detecting nonlinearity. > > What is the "working" option and how is this different? See above. I hope this helps, John -------------------------------- John Fox Senator William McMaster Professor of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada web: socserv.mcmaster.ca/jfox > > Thank you > Jason > > Dr. Iasonas Lamprianou > > > Assistant Professor (Educational Research and Evaluation) > Department of Education Sciences > European University-Cyprus > P.O. Box 22006 > 1516 Nicosia > Cyprus > Tel.: +357-22-713178 > Fax: +357-22-590539 > > > Honorary Research Fellow > Department of Education > The University of Manchester > Oxford Road, Manchester M13 9PL, UK > Tel. 0044 161 275 3485 > iasonas.lampria...@manchester.ac.uk > > > > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.