search for: benrhelp

Hi all, I am trying to re-compile some "unmaintained" (it seems) packages, namely rSoNIA and dynamicnetwork from: http://csde.washington.edu/~skyebend/rsonia/rsoniaDemo/ These packages predates R 2.10.0 so they need to be recompile. After split the single big file in /man in each packages into a file for each function + some minor fix, I successfully manage to recompile and load

Hi all, I am looking at the tutorial/appendix from John Fox on ?Cox Proportional-Hazards Regression for Survival Data? available here: http://cran.r-project.org/doc/contrib/Fox-Companion/appendix-cox-regression.pdf I am particularly interested in modelling survival with time-dependent covariates (Section 4). The data look like this: > Rossi.2[1:50,] start stop arrest.time week arrest fin

Hi all, Is there an equivalent to predict(...,type="linear") of a Proportional hazard model for a Cox model instead? For example, the Figure 13.12 in MASS (p384) is produced by: (aids.ps <- survreg(Surv(survtime + 0.9, status) ~ state + T.categ + pspline(age, df=6), data = Aidsp)) zz <- predict(aids.ps, data.frame(state = factor(rep("NSW", 83), levels =

Hi All, I am trying to use a neural network for my work, but I am not sure about my approach to select a parsimonious model. In R with nnet, the IAC has not been defined for a feed-forward neural network with a single hidden layer. Is this because it does not make sens mathematically in this case? For example, is this pseudo code sensible? Thanks in advance for your help. I am sorry if this

Hi, On a Win7 64 bit, I have installed: *R-15.0 and I am running it in 64bits *Rtools215.exe*MySQL 5.5.23 64bits My PATH start with D:\BenSave\Rtools\bin;D:\BenSave\Rtools\MinGW64\bin;D:\BenSave\R\R-2.15.0\bin;D:\BenSave\Rtools\MinGW\bin;D:\BenSave\Rtools\gcc-4.6.3\bin; Note that I place MinGW64\bin has I want the package in 64 bits, so just in case it helps... To install RMySQL 64 bits, I

Hi all, I am trying to compile Rgraphiz on Windows 7 64bit with R-2.13.0. I have installed Rtools213.exe from [1]. The 64bit packages in [2] provided me with the 64 bit version of graphviz. After intalling the binary version Rgraphviz 1.30 (in 32bit) it complains (as expected) that: > library(Rgraphviz) Error: package 'Rgraphviz' is not installed for 'arch=x64' I