[R] Reading from files to 2D matrix
kparamas
kparamas at asu.edu
Sun Jan 30 20:54:26 CET 2011
Hi,
I am reading from many files DYNAMICALLY into a 2D matrix using row bind.
I am not able to do with the code below.
for(years in c(1:NUM_YEARS))
{
for(weeks in seq(1,NUM_WEEKS,LAG_WEEKS))
{
currentYear = BASE_YEAR + years;
if(weeks < 9)
fileName = sprintf("%d%s%d%s%d%s", currentYear, "/diffw0",
(weeks+1), "y", currentYear, "+landmask")
else
fileName = sprintf("%d%s%d%s%d%s", currentYear, "/diffw",
(weeks+1), "y", currentYear, "+landmask")
#print(fileName)
dataval = readBin(file(fileName, "rb"), double(),
size=4,n=ROW*COL, endian="little")
dataval = dataval[abs(dataval[]) < 100]
dataval = dataval[abs(dataval[]) != 0]
cData = rbind(dataval)
dim(cData)
}
}
I tried readBin and when it has 30000 values in it,
when I read them sepeartely as dataval1, dataval2,..
and then do cData=rbind(dataval1, dataval2,....)
It works perfectly!!
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