[BioC] Imputations?

[marcus]

Hello Bioc.

I have encountered a problem when I try to use the impute.knn function
in the package impute.

I have tried to use a matrix with 30000 rows and 2 columns(MS).

When I try the command:

impute.knn(MS)

Then R will crash within a second or so.

Does anyone use the imputations in the package impute with any success,
or
do no one make any imputations at all?

Regards

Marcus


Marcus Gry Björklund
 
Royal Institute of Technology
AlbaNova University Center 
Department of Molecular Biotechnology
106 91 Stockholm, Sweden

Phone (office): +46 8 553 783 44
Fax: + 46 8 553 784 81
Visiting address: Roslagstullsbacken 21, Floor 3
Delivery address: Roslagsvägen 30B                          
Web: http://www.biotech.kth.se/molbio/microarray/index.html

-----Original Message-----
From: bioconductor-bounces at stat.math.ethz.ch
[mailto:bioconductor-bounces at stat.math.ethz.ch] On Behalf Of Katleen De
Preter
Sent: Thursday, January 13, 2005 9:08
To: bioconductor at stat.math.ethz.ch
Subject: [BioC] mas5call select genes

Dear Colleagues,
I would like to select genes based on the Affymetrix calls 
(mas5call-function in affy package). For example, how can I obtain the 
list of genes/probeIds that have in at least 1 of 20 experiments a 
present call?
Best regards,
Katleen De Preter




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