Serguei Kaniovski wrote:
> Hi, I have a more complex example, but the problem boils down to this
> FOR-loop not filling in the res-matrix
> for(i in run_rows)
> {
> for(j in run_cols)
> {
> res[i,j]=i+j
have a look at what i and j are in such a loop:
> for(i in run_rows){
+ print(i)
+ }
[1] 0
[1] 0.05
[1] 0.1
[1] 0.15
[1] 0.2
[1] 0.25
- and then you are trying to fill res[0.05,.3] and so on. Its not
going to work!
You probably want something like:
for(i in 1:length(run_rows)){
so that i is 1,2,3,....
then you do:
res[i,j] = run_rows[i] + run_cols[j]
within your loop...
...which in fact can be done in one line, but you need to learn about
matrix indexing first!
Barry
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