[R] Create Matrix with Float32 values

2011-06-01 Thread Chris English
Dear R_Help: The following gives me a matrix with integer values. z= matrix(rep(10:1, each= 10), ncol= 10, byrow=TRUE) str(z) int [1:10, 1:10] 10 9 8 7 6 5 4 3 2 1 ... How do I specify that I want Float32 values instead. Thanks,Chris

[R] for loop populate matrix

2011-05-10 Thread Chris English
Dear List, I am trying to populate a matrix using a for loop.This works. four- matrix(nrow=4,ncol=5) for (j in 1:ncol(four)){+ for (i in 1:nrow(four)){+ four[i,j]-i-1}+ } print(four)     [,1] [,2] [,3] [,4] [,5][1,]    0    0    0    0    0[2,]    1    1    1    1    1[3,]    2    2    2  

Re: [R] for loop populate matrix

2011-05-10 Thread Chris English
? matrix(rep(3:0, each = 5), ncol = 5, byrow = TRUE) [,1] [,2] [,3] [,4] [,5] [1,] 3 3 3 3 3 [2,] 2 2 2 2 2 [3,] 1 1 1 1 1 [4,] 0 0 0 0 0 HTH, Dennis On Tue, May 10, 2011 at 11:10 AM, Chris English wrote: Dear List, I am trying to populate a matrix using a for loop.This works. four