On May 26, 2010, at 11:58 AM, <mau...@alice.it> <mau...@alice.it> wrote:
I am assigning subset of a matrix A [n,3] where n>1 to a temporary
matrix TMP
I do not know how many rows of A will be assigned to TMP because
this is established by a
run-time test.
I expect TMP to be a matrix [m,3], m >=1
But when 1 row only is transferred from A to TMP then TMP becomes
[3,1]
Actually it becomes a vector. Look at it with str or is.matrix.
rather than [1,3]
How can I avoid this unwanted transpose operation ?
drop=FALSE
THank you in advance,
Maura
David Winsemius, MD
West Hartford, CT
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