[R] add an idx column to the matrix

[Lida Zeighami]

Hi there,

I have a matrix contain 0,1,2, NA elements.
I want to add a column to this matrix with name of "idx" . then for each
row, I should put 1 in this column (idx) if there is at least one 2 in that
row otherwise I should put 0 in this column!

for example  mydata:

       125   255   558   2366   177    255
aa    0        1       0         NA    0         0
bb    1        1       0         NA    0         1
cs     2        1       2         1       0         0
de    0        1       0         NA    0         0
gh    2       0       0         0        0         0


my output should be:


       125   255   558   2366   177    255    idx
aa    0        1       0         NA    0         0      0
bb    1        1       0         NA    0         1      0
cs     2        1       2         1       0         0     1
de    0        1       0         NA    0         0      0
gh    2       0       0        2        0         2       1

Thank you for your help.

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