search for: equivalenet

Displaying 1 result from an estimated 1 matches for "equivalenet".

Did you mean: equivalanet
2011 Aug 08
2
2 questions on matrix manipulation in R
Hi there, I have two questions on matrix manipulation. For the first one, I want to calculate the product of each column of a matrix (say A) with another vector (say b). That is, if A has 5 columns (a1, a2, a3, a4, a5), I want to obtain a matrix with columns (a1*b, a2*b, aA3*b, a4*b, a5*b). Can I do it directly, without using "for" loop? For the second one, I have a matrix A of