Hi,
I'm trying to calculate euclidean distance for my matrix rx1. Its a big
matrix with 947 elements. However when i do the following,
for(k in 1:947) for(m in (k+1):947){
A =rbind(A,c(k,m,ED(rx1[,k], rx1[,m])))
}
I get the following error:
ED(rx1[,k], rx1[,m]) : subscript out of bounds
I checked for k in 1:100 and it runs fine; its a huge matrix and takes
atleast an hour to run before I get the results so I dont wanna run the
whole thing again and get the same error. Please help!
--
Ayesha Khan
MS Bioengineering
Dept. of Bioengineering
Rice University, TX
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Take a look at what happens when k=947 (last time through the loop). You are then indexing 'm in 948:947' so m==948 which is outside your matrix. On Tue, May 25, 2010 at 2:49 PM, Ayesha Khan <ayesha.diamondash at gmail.com> wrote:> Hi, > > I'm trying to calculate euclidean distance for my matrix rx1. ?Its a big > matrix with 947 elements. However when i do the following, > > for(k in 1:947) for(m in (k+1):947){ > A =rbind(A,c(k,m,ED(rx1[,k], rx1[,m]))) > } > I get the following error: > ED(rx1[,k], rx1[,m]) : subscript out of bounds > > I checked for k in 1:100 and it runs fine; its a huge matrix and takes > atleast an hour to run before I get the results so I dont wanna run the > whole thing again and get the same error. Please help! > > > -- > Ayesha Khan > > MS Bioengineering > Dept. of Bioengineering > Rice University, TX > > ? ? ? ?[[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve?
just a guess as i do not have your data: with k=947 (last outer loop) m starts from 948 and runs backwards to 947. As your matrix probably only has 947 columns you get this error.... Ayesha Khan schrieb:> Hi, > > I'm trying to calculate euclidean distance for my matrix rx1. Its a big > matrix with 947 elements. However when i do the following, > > for(k in 1:947) for(m in (k+1):947){ > A =rbind(A,c(k,m,ED(rx1[,k], rx1[,m]))) > } > I get the following error: > ED(rx1[,k], rx1[,m]) : subscript out of bounds > > I checked for k in 1:100 and it runs fine; its a huge matrix and takes > atleast an hour to run before I get the results so I dont wanna run the > whole thing again and get the same error. Please help! > > >