What was the exact syntax? read.table> ("mydata1.csv", sep=",", header=T) will read the data but not save anything.
mydat <-read.table ("mydata1.csv", sep=",", header=T) give you a data.frame called mydat. mean(mydat$X) should give you the mean of X John Kane Kingston ON Canada > -----Original Message----- > From: myjacara...@yahoo.com > Sent: Tue, 15 May 2012 05:57:51 -0700 (PDT) > To: r-help@r-project.org > Subject: [R] reading data into R > > Hi I am really new using R, so this is really a beginner stuff! I > created a very small data set on excel and then converted it to .csv > file. I am able to open the data on R using the command "read.table > ("mydata1.csv", sep=",", header=T)" and it just works fine. But when I > want to work on the data (e.g. calculate the mean of variable "X") R > says "object not found". I tried the "attach" command or "mean > ("mydata1.csv"&X)" but still I get the same error message. I don't > understand why R is having difficulty finding a variable. I believe I am > doing something wrong. I will really appreciate if you could help me > with this. > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ____________________________________________________________ FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your desktop! ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.