[R] convert real valued matrix to binary matrix

Jim Lemon jim at bitwrit.com.au
Fri Jan 10 10:08:55 CET 2014

On 01/10/2014 06:56 AM, email wrote:
> Hi:
> I am trying to analyze an yeast gene expression data
> http://arep.med.harvard.edu/biclustering/yeast.matrix
> I need to convert the real-valued data matrix to a binary (0,1)
> matrix. Is there any package available? How can it be done?
Hi John,
It looks like you have been told to perform dichotomous clustering on 
the yeast data from Tavazoie et al. 1999. You should probably look more 
closely at the cutoff expression level you are to use and think about 
creating a new matrix of logical (0,1) values using a logical condition. 
This may be as much help as you will get on the list for this sort of 


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