Dear All,
I would like to ask you how to accomplish a little tricky data
manipulation. I have a large dataset, looking something like:
templinecagenumber
18 18 1 6678.63
18 18 1 7774.458
18 18 1 7845.902
18 18 1 9483.578
Have you considered aggregate [documented in help(aggregate) or
www.r-project.org - search - R site search or Venables and Ripley,
Modern Applied Statistics with S]?
hope this helps. spencer graves
Federico Calboli wrote:
Dear All,
I would like to ask you how to accomplish a little tricky
x - read.table(file(clipboard), header=T)
# add an extra field to define groups of 5 sequential rows
x[,code] - rep(seq(len=nrow(x)/5), each=5)
x
temp line cage number code
118 181 6678.6301
218 181 7774.4581
318 181 7845.9021
418 181
