Re: [R] standard error of Binary logistic regression coefficient.

Hi, Just to extend the excellent suggestions, if you are interested in the odds ratio, you can just use exp(): #Odds Ratio exp(fit4$coefficients) #Confidence interval around OR exp(confint(fit4)) To give you an idea graphically of the log odds (or logit) look at: p <- seq(0, 1, by = .001) plot

Re: [R] standard error of Binary logistic regression coefficient.

Medicine jsor...@grecc.umaryland.edu -Original Message- From: Bessy To: Sent: 7/27/2010 11:40:33 AM Subject: [R] standard error of Binary logistic regression coefficient. Dear all, I am struggling with the calculation of standard error of the coefficient in Binary logistic regression

Re: [R] standard error of Binary logistic regression coefficient.

Maryland School of Medicine Division of Gerontology and Geriatric Medicine jsor...@grecc.umaryland.edu -Original Message- From: Bessy To: Sent: 7/27/2010 11:40:33 AM Subject: [R] standard error of Binary logistic regression coefficient. Dear all, I am struggling with the calculation of

[R] standard error of Binary logistic regression coefficient.

Dear all, I am struggling with the calculation of standard error of the coefficient in Binary logistic regression analysis. I built a binary logsitic regression model as follows and got confused since the calculation of standard error of coefficients of X1, X2 and X3 are not the same as the Line