Can someone please give me a pointer here.
I have two matrices
matA
A B C
1 5 2 4
2 2 4 3
3 1 2 4
matB
A B C
1 TRUE FALSE TRUE
2 FALSE TRUE TRUE
3 FALSE FALSE FALSE
how do I extract all the values from matA where the coresponding entry
in matB == TRUE (or FALSE), perferably in vector form.
Many thanks
tom
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