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getfolder
2008 Jul 06
3
Lots of huge matrices, for-loops, speed
...e (as you may see from the code below) and did not find a way by now.
I would appreciate very much any suggestions for speeding up the procedure.
Thanks, Zarza
The code (running but sloooooow):
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regrid <- function (infolder, x, outfolder) {
# List of input files
setwd (infolder)
filelist <- dir (pattern=".*.asc$", full.names = F)
# Dimensions (making use of the header information coming with
# the .asc-input files, ESRI-format)
hd <- read.table (filelist [1], nrows = 6)
cols <- hd[1,2]
rows <- hd[2,2]
times...