search for: exprt

I am trying to save an R data.frame as an Excel sheet. I do NOT want the column names saved into row 1. I set colnames=F. However, it still seems that the colnames are saved into row 1. Is this a bug? Or am I coding incorrectly and.or misunderstanding this feature? #example code: sheet = "c:/test2.xls" temp=data.frame(matrix(data=NA,nrow=10,ncol=15)) temp[1,1] =

Dear ExpRts, I would like to perform a function with two arguments over the rows of two matrices. There are a couple of *applys (including mApply in Hmisc) but I haven't found out how to do it straightforward. Applying to row indices works, but looks like a poor hack to me: sens <- function(test, gol...

Dear expRts, I just realized that the "..." argument in a function cannot be used without taking precautions sometimes. The following behaviour is what I stumbled upon: > myrepl <- function(length, fun, ...) { + replicate(length, fun(...))} > myrepl(20, sample, 1:5) [1] 0 0 0 0 0 0 0 0 0...

Dear expRts, when I try to build a package by myself, the process fails writing the following messages to 00install.out: * Installing *source* package 'dynalc' ... ** libs WARNING: no source files found chmod: Zugriff auf ?/home/hannes/texte/forschung/clot/programme/dynalc.Rcheck/dynalc/libs/*? nicht...

...No changes in battery charge level > > After reboot web status show "LOWBATTERY" as low as 26% (I doesnt check > upsc)!!! > I do not recognize "stale" situation - but I do not know that I should be > happy or not. > > What to do now? Arnaud -- Linux / Unix Exprt R&D - MGE Office Protection Systems - http://www.mgeops.com Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/ Debian Developer - http://people.debian.org/~aquette/ Free Software Developer - http://arnaud.quette.free.fr/

Dear lists, I'm in my process of learning of writing a function. I tried to write a simple functions of a matrix and a vector. Here are the codes: mm<-function(m,n){ #matrix function w<-matrix(nrow=m, ncol=n) for(i in 1:m){ for(j in 1:n){ w[i,j]=i+j } } return(w[i,j]) } v<-function(n){ #function of a vector y=vector(length=n)

...{ > w[i,j]=i+j > } > } > return(w[i,j]) > } > In addition to the other comments, allow me to remark that R provides a lot of convenience functions on vectors that make explicit looping unnecessary. An error such as yours wouldn't have occurred to a more experienced expRt because indices wouldn't turn up in the code at all: mm <- function(m, n) { a <- array(nrow=m, ncol=n) row(a)+col(a) } Greetings Johannes -- Johannes H?sing There is something fascinating about science. One gets such wholesale ret...