On 10/11/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Dear list, first accept my apologies for asking a non-R question.
> Can anyone point me to a good reference on logistic regression? web or > book references would be great. I am interested in the use and > interpretation of dummy variables and prediction models. > I checked the contributed section in the CRAN homepage but could not > find anything (Julian Faraway´s "practical Regression and ANOVA using > R" does not cover logistic regression) The wikipedia article on logistic regression (http://en.wikipedia.org/wiki/Logistic_regression) contains a brief description and some references. Statisticians often consider logistic regression to be an example of a more general class of models called generalized linear models, which is why the R function to fit a logistic regression model is called glm. There is a link in the logistic regression wikipedia article to the generalized linear model article. Whenever you use wikipedia you should be cautious of the quality of the information in the articles. Generally the articles are good as a brief introduction but they can and do contain errors so you should check important facts and not take them at face value. A person in one of my classes asked about the standard deviation and I suggested that they look at the wikipedia article on the topic. Then I looked at it myself and saw that one of the things mentioned is that the standard deviation of the Cauchy distribution is undefined, which is true, but the reason given is because E[X] is undefined, which is not true. ______________________________________________ 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.
