try also this:

x <- matrix(c(2,-1,-2,3,5,6,-3,7,4,2,1,0), 4, 3)
x[!rowSums(x < 0), ]


Best,
Dimitris


farida...@gmail.com wrote:
Hello All,

I would like to remove the entire row, if there is any negative element in that row. What is the best way to do that?

For example,

x<-matrix(c(2,-1,-2,3,5,6,-3,7,4,2,1,0), 4, 3)

the returning matrix should look like

[,1] [,2] [,3]
[1,] 2 5 4
[2,] 3 7 0


Thank you in advance,

FM

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Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center

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