Re: [R] coefficient of logistic regression

2003-06-06 Thread John Fox
Dear can y, At 03:04 PM 6/4/2003 +0300, orkun wrote: [previous messages deleted] Dear Mr. Fox thank you very much all. Because of related to your answer. I ask you directly if you don't mind I studied several ways after my email. I wonder whether pgeo-predict.glm(glm.ob,type=terms) gives

Re: [R] coefficient of logistic regression

2003-06-04 Thread Thomas W Blackwell
Ahmet - In a logistic regression model, fitted probabilities make sense for individual cases (rows in the data set), as well as for future cases (predictions) for which no outcome (success or failure) has been observed yet. Fitted probabilities are calculated from the matrix formula:

Re: [R] coefficient of logistic regression

2003-06-04 Thread John Fox
Dear Ahmet, Sorry for the slow response, but I've been busy all today, coincidentally teaching a workshop on logistic regression. Tom Blackwell sent you a useful suggestion for interpreting coefficients on the odds scale. If you want to trace out the partial relationship of the fitted

[R] coefficient of logistic regression

2003-06-03 Thread orkun
Hello in logistic regression, I want to know that it is possible to get probability values of each predictors by using following formula for each predictor one by one (keeping constant the others) exp(coef)/(1+exp(coef)) thanks in advance Ahmet Temiz __

Re: [R] coefficient of logistic regression

2003-06-03 Thread John Fox
At 11:54 AM 6/3/2003 +0300, orkun wrote: in logistic regression, I want to know that it is possible to get probability values of each predictors by using following formula for each predictor one by one (keeping constant the others) exp(coef)/(1+exp(coef)) Dear Ahmet, This will almost surely

Re: [R] coefficient of logistic regression

2003-06-03 Thread orkun
John Fox wrote: At 11:54 AM 6/3/2003 +0300, orkun wrote: in logistic regression, I want to know that it is possible to get probability values of each predictors by using following formula for each predictor one by one (keeping constant the others) exp(coef)/(1+exp(coef)) Dear Ahmet, This