On Jan 20, 2010, at 4:55 PM, jshort wrote:
I'm attempting to generate matrices where the entries are randomly
generated
numbers of specified distribution.
The following code was an attempt to create a 3 by 3 matrix, where my
entries where randomly generated from a uniform (0,1) distribution.
x = matrix(0,ncol = 3, byrow = T)
> x = matrix(0,ncol = 3, byrow = T)
> x
[,1] [,2] [,3]
[1,] 0 0 0
for(i in 1:3) {
for(j in 1:3) { x[i,j]= runif(1,0,1) }
}
The problem I get with the above code however is that I get an error
message
which says the following;
"Error in x[i,j]= runif(1,0,1) : subscript out of bounds"
I haven't been able to figure out how to fix this.
Make your matrix large enough to accept the range of values for the
indices.
Any help would be much
appreciated.
jshort
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