Hello everyone, I have the following problem:
My analysis includes many predictor variables (>50) in the form of raster maps (asc), but I am trying to avoid having to type all their names over and over again in the analysis (e.g. for vectorisation, for deletion of NA's, etc.) So ideally I would like to store them in some way that their names only have to be typed once and can always be referred back to. First step would be to automate the vectorisation of the raster maps: # these are the raster maps which need to combined somehow ?? variables <- (temperature, precipitation, elevation, vegcover) VariablesNew=c() For (i in 1:length(variables)) { Varnew <- as.vector(variables[i]) VariablesNew <- cbind(VariablesNew, Varnew) } This should return a data frame called VariablesNew with each column representing one of the variables. So the BIG QUESTION is how to input the variable names that they can be referred to easily and, the variable itself can be pulled out and not just its name!! I believe this cant be too difficult?? Thanx in advance, Katrin ______________________________________________ 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.