[R] Delete rows from matrix having at least one zero value

[mentor_]

Have found a solution:

matrix[rowSums(matrix == 0) == 0, ]



mentor_ wrote:
> 
> Hi,
> 
> I have a further question about matrix manipulation.
> 
> Imagine the following two matrices:
>> test
>      [,1] [,2] [,3] [,4]
> [1,]    1    0    6    4
> [2,]    2    5    7    5
> [3,]    3    6    8    6
> [4,]    4    0    0    0
> 
>> matrix(is.element(test,0), ncol=4)
>       [,1]  [,2]  [,3]  [,4]
> [1,] FALSE  TRUE FALSE FALSE
> [2,] FALSE FALSE FALSE FALSE
> [3,] FALSE FALSE FALSE FALSE
> [4,] FALSE  TRUE  TRUE  TRUE
> 
> How can I apply the TRUE FALSE matrix to the 'test' matrix so that all
> rows 
> having at least one zero value will be thrown out.
> 
> So after applying the TRUE FALSE matrix the test matrix shoud look like
> the following:
>      [,1] [,2] [,3] [,4]
> [1,]    2    5    7    5
> [2,]    3    6    8    6
> 
> Cheers
> 

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