Displaying 1 result from an estimated 1 matches for "qaa08121".
2005 Jan 05
7
count element in column
Hi,
I 've a matrix n*1 (thus a column) and I would like to
count the number of negative element inside.
Can you help me?
Thanks!
eg:
res[,1]= 1
-3
-1
How obtain the number 2 (number of negative-element)?