search for: columnn

Hi all, I have a columnn with text that has quite a few words in it. I would like to split these words in separate columns, but just first ten words in the string. Is that possible in R? Thank you, m [[alternative HTML version deleted]]

...s specification .... at the expense of a warning message which can be ignored: > read.table(textConnection(words), fill=T, colClasses = c(rep("character", 8), rep("NULL", 30) ) , stringsAsFactors=FALSE ) V1 V2 V3 V4 V5 V6 V7 V8 1 I have a columnn with text that has 2 I would like to split these words in 3 but just first ten words in the string. Warning message: In read.table(textConnection(words), fill = T, colClasses = c(rep("character", : cols = 14 != length(data) = 38 If you want to assign t...

Hi, I'm completely new to R, I am all at sea with the interface and the confusing help files, so would appreciate some help to do a simple task. Need to present the mean and variance of 100 different samples of poisson distributions (N=1000, with fixed lambda) in a file in two columnns, and then produce histograms. So far I have figured out: > N <- 1000 > x <- rpois(N, 3.1) , and > var(x) and > mean(x) , and I've seen the hist command, just need to tie it all together. I read that loops aren't really used in R, so what do i need to do? thanks -...

Dear all, Can I use "write.table" to append columnns? Thanks for any help -MY [[alternative HTML version deleted]]

...more constructively, when you get an error like > CI.c = predict(mod2, data.frame( `plant-density` = x), interval = 'c') # fail Error in eval(predvars, data, env) : object 'plant-density' not found you should check your assumptions. Does "newdata" actually contain a columnn called "plant-density": > head(data.frame( `plant-density` = x)) plant.density 1 65.00000 2 65.11912 3 65.23824 4 65.35736 5 65.47648 6 65.59560 > I.e., it doesn't. So check help for data.frame and looking for something with names. > On 1 D...

"Thank you Rui. I didn't know about the check.names = FALSE argument. > Another good reminder to always read help, but I'm not sure I understood > what help to read in this case" ?data.frame , of course, which says: "check.names logical. If TRUE then the names of the variables in the data frame are checked to ensure that they are syntactically valid variable names

I have a text file that has semi-colon separated values. The table is nearly 10,000 by 585. The files looks as follows: ******************************************* First line: Skip this line Second line: skip this line Third line: skip this line variable1 Variable2 Variable3 Variable4 Unit1 Unit2 Unit3 10 0.1 0.01 0.001 20