Achim Zeileis wrote:
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
But be very skeptical about the operating characteristics of these
operating characteristics.
Frank Harrell
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: [EMAIL PROTECTED]
homepage:
http://www.education.wisc.edu/edpsych/default.aspx?content=kaplan.html
Phone: 608-262-0836
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______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide
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and provide commented, minimal, self-contained, reproducible code.
--
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University
______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
