Re: [R] Prediction Error Calculation

Any help would be appreciated. quaildoc wrote: Hello List, I am fitting a logistic regression model for some presence/absence type data. I have numerous covariates I am fitting to explain variation, and I am using AIC to rank models. However, I would like to report how well my best

Re: [R] Prediction Error Calculation

Any suggestions? quaildoc wrote: Hello List, I am fitting a logistic regression model for some presence/absence type data. I have numerous covariates I am fitting to explain variation, and I am using AIC to rank models. However, I would like to report how well my best model (s) do

[R] Prediction Error Calculation

Hello List, I am fitting a logistic regression model for some presence/absence type data. I have numerous covariates I am fitting to explain variation, and I am using AIC to rank models. However, I would like to report how well my best model (s) do at prediction. I have looked over the

Re: [R] Time Dependent Cox Model

Does anyone have suggestions? Thanks! quaildoc wrote: I am having trouble formatting some survival data to use in a time dependent cox model. My time dep. variable is habitat and I have it recorded for every day (with some NAs). I think it is working properly except for calculating

Re: [R] Time Dependent Cox Model

exactly you're trying to obtain. I'd also suggest to add the command to read in the data. I don't have the time to spend looking around how exactly I can read in the dataset in such a way it fits what you have in your workspace. Cheers Joris On Wed, Oct 14, 2009 at 5:37 PM, quaildoc just.strut

[R] Time Dependent Cox Model

I am having trouble formatting some survival data to use in a time dependent cox model. My time dep. variable is habitat and I have it recorded for every day (with some NAs). I think it is working properly except for calculating the death.time. This column should be 1s or 0s and as I have it