how to do half-wave rectification for an array?

Dear friends,

how to do half-wave rectification for an array? that is, how to replace all the negative value of an array with zeros?

Thank you!

Answer 1

[Image Analyst]

Try this for your array A

mask = A < 0; % Map of where all the negative numbers are
A(mask) = 0;  % Set all the negative numbers to 0.