Including multiple conditions in for-loop
16,967
Solution 1
To answer your question, you need:
for (i in 1:nrow(mydata)) {
for (j in 1:nrow(mydata) ) {
if(j != i) {
Statements....
}
}
Statements...
}
However, there is probably a nicer way achieving what you want to do, but I would need more details.
Solution 2
This could do the trick:
for (i in seq(nrow(mydata)))
{
for (j in seq(nrow(mydata))[-i])
{
Statements....
}
Statements...
}
You could also take a look at ?combn
or ?expand.grid
depending on your real purpose.
Author by
user969524
Updated on August 02, 2022Comments
-
user969524 over 1 year
I am trying to specify two conditions as a part of a for loop. It seems like the second condition in the second for loop is not being considered. My code runs this way:
for (i in 1:nrow(mydata)) { for (j in 1:nrow(mydata) && j!=i ) { Statements.... } Statements... }
Could you please tell me if this is the right Syntax in R? Thanks!