Hello,
1. Let me refrase it a bit. For each column, sum all others and take the
symmetric.
mat <- matrix(1:30, ncol = 3)
sapply(seq_len(ncol(mat)), function(i) -rowSums(mat[, -i]))
2. write.table (maybe using sep = "\t" ?) and send the file to printer.
Hope this helps,
Rui Barradas
Em 05-10-2012 21:05, eliza botto escreveu:
Dear useRs,
I have a matrix with 38 columns and 365 rows. what i want to do is the
following.....
1. subtracting from each column, first itself and then all the remaining
columns. More precisely, from column number 1, i will first subtract
itself(column 1) and then the remaining 37 columns. Afterwards i will take
column number 2 and do the same. In this way i want to proceed till 38th column.
2. i want to print the resulting matrix on A4 paper.
Bundle of thanks in advance.
best regards
eliza
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