[R] Clustering problem

2011-03-21 Thread Abhishek Pratap
Hi Guys I want to apply a clustering algo to my dataset in order to find the regions points(X,Y) which have similar values(percent_GC and mean_phred_quality). Details below. I have sampled 1% of points from my main data set of 85 million points. The result is still somewhat large 800K points and

Re: [R] clustering problem

2011-03-02 Thread Maxim
, March 02, 2011 4:08 PM > To: r-help@r-project.org > Subject: [R] clustering problem > > Hi, > > I have a gene expression experiment with 20 samples and 25000 genes each. > I'd like to perform clustering on these. It turned out to become much > faster > when I transform

Re: [R] clustering problem

2011-03-02 Thread rex.dwyer
Don't you expect it to be a lot faster if you cluster 20 items instead of 25000? -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Maxim Sent: Wednesday, March 02, 2011 4:08 PM To: r-help@r-project.org Subject: [R] clustering pr

[R] clustering problem

2011-03-02 Thread Maxim
Hi, I have a gene expression experiment with 20 samples and 25000 genes each. I'd like to perform clustering on these. It turned out to become much faster when I transform the underlying matrix with t(matrix). Unfortunately then I'm not anymore able to use cutree to access individual clusters. In

Re: [R] clustering problem

2008-02-25 Thread Uwe Ligges
Karin Lagesen wrote: > First I just want to say thanks for all the help I've had from the > list so far..) > > I now have what I think is a clustering problem. I have lots of > objects which I have measured a dissimilarity between. Now, this list > only has one entry per pair, so it is not symme

[R] clustering problem

2008-02-20 Thread Karin Lagesen
First I just want to say thanks for all the help I've had from the list so far..) I now have what I think is a clustering problem. I have lots of objects which I have measured a dissimilarity between. Now, this list only has one entry per pair, so it is not symmetrical. Example input: NameA N