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Dear all, I am new to R and this group. I have good experience in S scripts. I need some orientation on data imports, general plotting functions. Can you please direct me? Regards,Ayyappa Chaturvedula

Dear R users, I am trying to use VIM (Visualization and Imputation of Missing Values) package in R. When I try to install the VIM library (library(VIM)), I am getting this: Error in library(VIM) : there is no package...

Dear all, I am sorry if I misstated the problem. The roundig issue is with NONMEM software not with R. But the suggestions are helpful. Regards,Ayyappa Chaturvedula On Jan 11, 2012, at 12:14 PM, David Winsemius <dwinsemius at...

Dear Group, I am trying to simulate a dataset with 200 individuals with random assignment of Sex (1,0) and Weight from lognormal distribution specific to Sex. I am intrigued by the behavior of rlnorm function to impute a value...

That works for me and thanks for the help. On Apr 23, 2013, at 2:59 PM, Rui Barradas <ruipbarradas at sapo.pt> wrote: > Hello, > > Forgot to add strptime, like you had noted. > > strptime(paste(DATE, TIME), format = "%d/%m...

I am sorry either naivety with group. I will follow the instructions from now. Regards, Ayyappa On Aug 3, 2012, at 12:18 PM, "David L Carlson" <dcarlson at tamu.edu> wrote: > How about providing the data for at least...

I am sorry, I missed that. I think I made it more appropriate and not using unnecessary simulated values. Thank you for your help. fulldata$Wt<-ifelse(fulldata$Sex==1,rlnorm(length(fulldata$Sex[fulldata$Sex==1]), meanlog = log(85...