Displaying 2 results from an estimated 2 matches for "twodimensional".
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2003 Apr 23
1
clustering
Dear R-users,
I have a two - dimensional data set which needs to be clustered into
groups:
I'm searching for groups of points which show a positive
correlation (in a twodimensional plot of the data set), but I do not have
any knowledge about how many groups there might be.
Do you know of a clustering algorithm in R (or
in general) which can use a-priori information about the cluster's shape,
in particular that the points of a given cluster should lie on a line?
The "...
2011 Mar 30
4
a for loop to lapply
Dear all,
I am trying to learn lapply.
I would like, as a test case, to try the lapply alternative for the
Shadowlist<-array(data=NA,dim=c(dimx,dimy,dimmaps))
for (i in c(1:dimx)){
Shadowlist[,,i]<-i
}
---so I wrote the following---
returni <-function(i,ShadowMatrix) {ShadowMatrix<-i}
lapply(seq(1:dimx),Shadowlist[,,seq(1:dimx)],returni)
So far I do not get same results