How find each element in a vector that is equal to 0

I want to write a function that will receive one vector as input argument. I then want that function to return the largest element of vec that is adjacent to an element with the value 0. How do I check each element in the vector for being equal to zero? Also how to I then compare the two elements on either side of the zero?

Answer 1

[Image Analyst]

Hint:

zeroLocations = vec == 0

and movmax() or imdilate(). Note: be careful to be robust, like in the cases where 0 is the largest value in a 3-element window around the zero. Do you want the result at that location to be 0, or the next largest number? If it's the next largest number, like for [-3, 0, -5] you want -3, you can do that with imdilate() using a structuring element of [1, 0, 1]. I don't think movmax() can do that so it would give you 0 instead of -3.