How to get a vector of numbers from a matrix for a list of selected locations?

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Alon Rozen 2020-2-9

评论： Alon Rozen 2020-2-9

Hi,

Suppose I have a matrix of numbers/logicals.

I have a set of pairs of indices (i,j) pointing to some matrix entries .

I want a vector of numbers/logicals from the matrix in these (i,j) indices.

Of course, I can write a for loop and get the number/logical in each matrix entry.

Is there a more efficient way to get this done? Without a loop?

Thanks,

Alon

Stephen23 2020-2-9

Alon Rozen 2020-2-9

Stephen thanks :)

I didn' know about this function.

So simple!

Alon

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