On 28/04/2011 3:49 PM, Dat Mai wrote:
I currently have this code:
for(j in 2:n){
for(i in 1:(j-1)){
# Make sure the inputs are for the matrix "m"
input1=rownames(m)[i]
input2=colnames(m)[j]
q=t[(t$Rec1==input1& t$Rec2==input2),output]
if(length(q)==0){
q=t[(t$Rec1==input2& t$Rec2==input1),output]
}
m[i,j]=mean(q)
m[j,i]=mean(q)
m[j,j]=mean(q)
}}
I already created a 20x20 matrix "m" and have the rows and columns made up:
m=matrix(data=NA, nrow=rl, ncol=rl, dimnames=list(R1=rec.list, R2=rec.list))
the length of a column in the matrix is 20
the length of n is 430
When I run this, the error: "Subscript is out of Bounds" appears when it
reaches the m[i,j].
Checking again, the issue is primarily with "j"
How would I go about fixing this issue (nevermind the "mean(q)", as I don't
even know if that works and didn't get the chance to explore it)?
Just before you get to that line, insert the following:
print(dim(m))
print(i)
print(j)
Take a look at the results, and see if i is really in the range from 1
to dim(m)[1], and j in the range 1 to dim(m)[2]. From what you're
saying, it sounds as though j can go to 430, which is too big, if m is
20 by 20.
Duncan Murdoch
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