Hi there I'm working with ncdf data. I have different dataset for 4 runs, 4 seasons and 3 timeslices (48 datasets in total). The datasets have the following dimensions: 96 longitudes, 48 latitudes and 30 time steps. To read all of them in, I wrote the following loop:
runs <- c("03","04","05","06") years <- c(1851,1961,2061) seasons <- c("DJF","MAM","JJA","SON") for (i in runs) { for (j in years) { for (k in seasons) { data <- open.ncdf(paste("/data09/cstocker/data/atm/tr_1500_", i,"/PRECT/PREC_tr1500_", i,"_", j,"_", k,".nc", sep="")) prect <- get.var.ncdf(data, "PRECT") assign(paste("prec", k, j, i, sep="_"), prect) } } } I produced 48 variables called prec_DJF_1851_03 and so on.. Now, how can I select an element out of each of these variables? If I have only one variable, I use: example[1:5, 6:10, 10:15] ...just as you would choose out of a simple array. That I don't have to do it for every single variable by hand, I wanted to create something like: for (i in runs) { for (j in years) { for (k in seasons) { assign(paste("newname", k, j, i, sep="_"), choose.element(paste("prec", k, j, i, sep="_"), at.position(x,y,z))) } } } How can I solve this problem? Took me already quite a lot of time to surf through all former posts. Unfortunately I could't find what I was looking for. I'd be very thankful for any kind of help as I am slowly very confused and frustrated... cheers.. -- View this message in context: http://r.789695.n4.nabble.com/Select-element-out-of-several-ncdf-variables-tp3651945p3651945.html 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.