Re: [R] working with matrix

2007-07-04 Thread Gabor Csardi 
which.max(apply(mat, 1, prod))

Gabor

On Wed, Jul 04, 2007 at 09:18:41AM -0700, Yemi Oyeyemi wrote:
 I am new in R and I want to solve this problem;
   I have a matrix X (with n-rows and p-colums) my problem is to obtain the 
 products of the vectors of rows and print out only the maximum value and 
 identify the row that gives the maximum value. Thanks
   Oyeyemi, G.M
 
  
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 Don't pick lemons.
 
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Re: [R] working with matrix

2007-07-04 Thread S Ellison 
Yemi,

Try

which.max(apply(X,1,prod))

(or possibly abs(apply(X,1,prod)) if you're only interested in unsigned product 
max.

S

 Yemi Oyeyemi [EMAIL PROTECTED] 04/07/2007 17:18:41 
I am new in R and I want to solve this problem;
  I have a matrix X (with n-rows and p-colums) my problem is to obtain the 
products of the vectors of rows and print out only the maximum value and 
identify the row that gives the maximum value. Thanks
  Oyeyemi, G.M

 
-
Don't pick lemons.

[[alternative HTML version deleted]]

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and provide commented, minimal, self-contained, reproducible code.

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