Hi fellow R-users,
I have run into a problem when trying to identify the number of rows in a
matrix. Say we have an arbitrary 5 by 5 matrix called temp:
temp <- matrix(norm(25), nrow=5)
The problem is that nrow(temp[1,]) returns NULL. I would like it to return 1
because in my larger program I am indexing the rows of large matrices according
to another variable and I need to test when the resulting matrices have 0, 1 or
more rows.
Thanks in advance for any assistance.
Best regards,
Gregory Gentlemen
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