Hello. This is to get you started with data.frames, next time please - read the posting guide - see the documentation, especially the builtin "R data import/export" manual form the help menu ## begin R examples, paste into console ## data(mtcars) # builtin database class(mtcars) # what it is mtcars # print it out... head(mtcars) # ...better: see first rows fm <- mpg~hp+wt summary(lm(fm, data=mtcars)) # my favourite regression: see ?mtcars save(mtcars, file="mtcars.rda") # save as R binary in current working directory load(file="mtcars.rda") # load from R binary file, get directly an R object write.table(mtcars, file="mtcars.txt") # write to text file (default is space-delimited) mtcars <- read.table(file="mtcars.txt") # read from text file and assign to an R object ## see help for all these functions as ?data ?read.table ## etc. ## end ## Data import/export is the nastiest step in any stats program, hold on ;^) ...and start with small examples: your "new" message probably means you don't have enough RAM (although from your post it is impossible to really tell). Giovanni Giovanni Millo Research Dept., Assicurazioni Generali SpA Via Machiavelli 4, 34132 Trieste (Italy) tel. +39 040 671184 fax +39 040 671160 ------------------------------ Original Message Date: Wed, 16 Dec 2009 12:26:03 +0200 From: Nancy Adam <nancyadam84 at hotmail.com> Subject: Re: [R] Read dataset in R language. To: <ehlers at ucalgary.ca> Cc: r-help at r-project.org Message-ID: <SNT122-W4335798ADCADAC8E0F70A0B1870 at phx.gbl> Content-Type: text/plain Hi all, I tried many things to read any dataset but I receive different error messages every time. One new message is: vector size specified is too large Can any one please send any part from any dataset just for testing a regression system and to know where is the problem?? Many thanks, Nancy Ai sensi del D.Lgs. 196/2003 si precisa che le informazi...{{dropped:13}}