similar to: Help Metafor

Dear all, I am interested to evaluate reclassification using net reclassification improvement and Integrated Discrimination Index IDI after survival analysis (Cox proportional hazards using stcox). I search a R package or a R code that specifically addresses the categorical NRI for time-to-event data in the presence of censored observation and, if possible, at different follow-up time points. I

I have the same problem of a previous request HOW to use the survivalROC (or another library in R) to get optimal cut-off values? I want to use the time-dependent survivalROC package.according to the,reference material,it only gives a partial set of ordered cut-off values .eg. -------------------------------------------------------------------------------- data(mayo) str(mayo) attach(mayo)

I have some question about metafor package. I'm interest to perform a random effect meta-analysis of proportion (single group summary of prevalence of disease in a population as reported by different study) It ask: 1. "PFT": The Freeman-Tukey double arcsine transformed proportion is reported to be equal to 1/2*(asin(sqrt(xi/(ni+1))) + asin(sqrt((xi+1)/(ni+1)))). Hovewer, i

Dear all, I use R 2.14.2 for Windows XP I have no problem with R Commander version 1.7-2, but now I have a problem with R Commander (Rcmdr) version 1.8-3. After I lunch R Commander (sdi as well standard) if I try to import data (i. from Stata datafile) I have this Warning message: Error in structure(.External("dotTclObjv", objv, PACKAGE = "tcltk"), class =

I have the same problem of a prevous request HOW to use the survivalROC (or another library in R) to get optimal cut-off values? I want to use the time-dependent survivalROC package.according to the,reference material,it only gives a set of ordered cut-off values .eg. -------------------------------------------------------------------------------- data(mayo) str(mayo) attach(mayo)

Subject: Re: [R] Problems with R Commander version 1.8-3 Many thanks for your kindly replay. I just use a At this time I use an earlier version of the package. I try to install the Rcmdr from R-Forge. Many tanks again Message: 21 Date: Wed, 28 Mar 2012 08:04:09 -0400 From: "John Fox" <jfox at mcmaster.ca> To: <petretta at unina.it> Cc: r-help at r-project.org

Dear all, I'm interested in fitting survival trees with competing risk analysis. The tree should show the cumulative incidence function for each terminal node . I read several paper illustrating this possibility, but to the best of my knowledge no R code are reported. There is any R package for this fit? Thank you very much in advance. Mario Petretta

Dear all I generated predicted risk of death for each subject in the study by means of Cox proportional hazards model at 8 year of follow-up, a time point at which follow-up was more than 90% complete. It is possible to extrapolate to 10-year the predicted risk of each subjet by assuming an exponential distribution? Any help would be greatly appreciated. Thanks for your consideration.