On 31-Oct-05 Rohit Singh wrote: > Hi, > > This is a newbie question. I have been using glm to perform some > logistic regression. However, if I take the fitted parameters (as > part of the glm object) and pass them on the glm.predict function, > for some test cases I am getting predicted values that are a little > over 1. This is a bit puzzling for me, because my understanding > was that these numbers are probabilities and so should be between > 0 and 1. > > Thanks a lot! I'd appreciate any help you could provide. > > -rohit
Indeed this should not happen, and probably there is some mistake in the way you use the predict function (which requires a little care). However, it's not possible to point-point what is happening without seeing a specific case. Can you post an example of the code you use when this happens? And, if feasible, also an example of data. Best wishes, Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 094 0861 Date: 31-Oct-05 Time: 23:00:39 ------------------------------ XFMail ------------------------------ ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
