[R] Removing Zeros from matrix

[Dimitris Rizopoulos]

one approach is the following:

mat <- matrix(rnorm(100*45), 100, 45)
mat[sample(100*45, 50)] <- 0

index <- rowMeans(mat == 0) == 0
mat[index, ]


I hope it helps.

Best,
Dimitris


On 3/9/2010 11:05 AM, ogbos okike wrote:
> Hi Everybody,
> I have a matrix of about 45 columns. Some of the rows contain zeros. Using
>> data1<-data[complete.cases(data),], I can remove the "NA" rows. But I am
> unable to tackle that of zeros.
> Can anybody give me an idea of how to remove rows containing zeros in a
> matrix.
> Thanks so much
> Best
> Ogbos
>
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-- 
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center

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