Hi, I have a more complex example, but the problem boils down to this
FOR-loop not filling in the res-matrix
run_rows-seq(0,1,0.05)
run_cols-seq(0.3,0.6,0.05)
res-matrix(NA,length(run_rows),length(run_cols))
for(i in run_rows)
{
for(j in run_cols)
{
res[i,j]=i+j
Hi,
I guess that res[i,j] needs integers as indexes.
I would try it like this:
(corrected)
run_rows-seq(0,1,0.05)
run_cols-seq(0.3,0.6,0.05)
res-matrix(NA,length(run_rows),length(run_cols))
for(i in 1:length(run_rows))
{
for(j in 1:length(run_cols))
{
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){
+
try this: (you were trying to index with non-integer numbers)
run_rows-seq(0,1,0.05)
run_cols-seq(0.3,0.6,0.05)
res-matrix(NA,length(run_rows),length(run_cols))
for(i in 1:length(run_rows))
{
for(j in 1:length(run_cols))
{
res[i,j] = run_rows[i] + run_cols[j]
#niether
Christian Hennig wrote:
run_rows-seq(0,1,0.05)
run_cols-seq(0.3,0.6,0.05)
res-matrix(NA,length(run_rows),length(run_cols))
for(i in 1:length(run_rows))
{
for(j in 1:length(run_cols))
{
res[i,j]=run_rows[i]+run_cols[j]
}
}
Or the one-liner:
res = outer(run_rows,run_cols,+)
: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://www.med.kuleuven.be/biostat/
http://www.student.kuleuven.be/~m0390867/dimitris.htm
- Original Message -
From: Serguei Kaniovski [EMAIL PROTECTED]
To: r-help@stat.math.ethz.ch
Sent: Monday, December 05, 2005 12:47 PM
Subject: [R] What
