[R] time calculation for simulation

Hello list, I want to compare time needed for a simulation between R and Ra (time optimized loops). Does anybody know, how I can count time needed for a simulation in R? Bests, Ralph __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/li

Re: [R] R function which finds confidence interval for binomial variance

Hello Robert, would it be an idea to construct CI's with bootstrap methods? If yes, you can use package "boot", based on the book of Davison & Hinkley or the package "bootstrap", based on the book of Efron &Tibshirani. You can put the estimator inside for argument "theta". Bests, Ralph Am Thurs

Re: [R] Graphics winder keeps disappearing!

Hi Lauren, try it with dev.off() before plotting. Perhaps you have an old window or connection open somewhere. Bests, Ralph Am Thursday 25 September 2008 14:24:17 schrieb Gough Lauren: > Dear all, > > I am a very new user to R (for windows) (since Monday!) so please excuse > me if I am asking an

[R] simulate data from multinomial distribution with overdispersion

Dear list members, I am searching for a way to simulate data from a multinomial distribution with overdispersion. The data should describe counts of different species under different conditions. Does someone know a way to simulate this or a book or article where I can find informations about t

[R] standard error for median

Dear all, is it possible to estimate a standard error for the median? And is there a function in R for this? I want to use it to describe a skewed distribution. Thanks in advance, Ralph [[alternative HTML version deleted]] __ R-help@r-project.

Re: [R] standard error for median

trap) in > chapter 5 of MASS (the book). The functions used are in the scripts > of the MASS package, but you will need to understand the theory being > used as described in the book. > > On Sat, 7 Mar 2009, Ralph Scherer wrote: > > > Dear all, > > > > is it p

Re: [R] standard error for median

Ok, found it. Thanks. Am Samstag, den 07.03.2009, 22:34 +0100 schrieb Ralph Scherer: > Dear Prof. Ripley, > > thank you for your fast answer. > But which book do you mean? > I can't find an MASS book. > Do you mean the R book? > > Best wishes, > Ralph > >

[R] which test for seven groups with dependency in replication and discrete values

hello! My Problem is, that I want to compare seven groups, which have the discrete values from 0 to 3. These are damageclasses of plants. 0 is best and 3 is worst. Every group has 4 replications with 2 plants. The two plants were together in a cage with animals. I think the problem is that the