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# Problem filtering negative values of a matrix using loop statements

## Problem filtering negative values of a matrix using loop statements

(OP)
Having a matrix defined by one column with 4000 integer values in rows, I would like to convert the negative ones into 0.

e.g.

v=[0;-1;-2;4;..]

vconvert=[0;0;0;4]

Therefore I tried to use the example described in the Mathcad13 tutorial, which skips over the nonpositive numbers with a "continue statement".I don't get a solution. Other procedures like "if statements" are also helpless for this "rookie" beginner.

I would be really delighted if someone could help me with an elegant solution.

Thanks a lot.

### RE: Problem filtering negative values of a matrix using loop statements

Might be easier to get an answer if you post your question and file on the Mathcad Collab:

TTFN

### RE: Problem filtering negative values of a matrix using loop statements

If you want to do it without programming, one way is:

(v + abs(v))/2

2 notes:  One, make sure to vectorize the equation (matrix toolbar).  Two, make sure to use the absolute value from the calculator toolbar, not the matrix toolbar (which is actually the determinate).

Peter

### RE: Problem filtering negative values of a matrix using loop statements

TTFN

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