search for: tp4630069p4630071

Displaying 1 result from an estimated 1 matches for "tp4630069p4630071".

2012 May 15
4
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