Hi all: Im kind of new on R and I need help changing a table. The thing is, i read a file on R using the read.table command and the table looks like this: Item 3d Plot XY plot 001 1 0 001 0 1 001 0 1 002 1 0 002 1 0 002 0 1 ... .. .. And what I want to do is generate a new table by item with the sum of the numbres, the next one is an example:
Item 3d Plot XY plot 001 1 2 002 2 1 003 ... ... Does anyone know how to do this? Thanks in advance, help is greatly appreciated -- View this message in context: http://www.nabble.com/Need-help-on-changing-a-table-tf4929014.html#a14107837 Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.