Re: [R] classification accuracy in logistic regression

From: Achim Zeileis <Achim.Zeileis_at_wu-wien.ac.at>
Date: Thu, 20 Nov 2008 18:42:00 +0100 (CET)

On Thu, 20 Nov 2008, David Kaplan wrote:

> Hi all,
>
> I'm looking for a program that will take the predicted probabilities from a
> logistic regression using glm{stats}, dichotomize them according to a
> threshold that I can control, and then use them to form sensitivity,
> specificity, false pos and false neg rates.

I would look at the ROCR package on CRAN which provides convenient access to various measures and associated graphics. Z

> Thanks in advance.
>
> David
>
>
> --
> =======================================================================
> David Kaplan, Ph.D.
> Professor
> Department of Educational Psychology
> University of Wisconsin - Madison
> Educational Sciences, Room, 1061
> 1025 W. Johnson Street
> Madison, WI 53706
>
> email: dkaplan_at_education.wisc.edu
> homepage:
> http://www.education.wisc.edu/edpsych/default.aspx?content=kaplan.html
> Phone: 608-262-0836
>
> ______________________________________________
> R-help_at_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_at_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. Received on Thu 20 Nov 2008 - 17:52:23 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Thu 20 Nov 2008 - 20:30:30 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive