Re: [R] classification accuracy in logistic regression

2008-11-20 Thread Frank E Harrell Jr
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, specif

Re: [R] classification accuracy in logistic regression

2008-11-20 Thread Achim Zeileis
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 f

[R] classification accuracy in logistic regression

2008-11-20 Thread David Kaplan
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. Thanks in advance. David