Setting bounds on a calculated array

I have a program that will randomly generate a number [-1 1] and add it to a random position in a vector. The program is supposed to work its way to an integer that corresponds with the ASCII digit so when converted it displays a target phrase.

The problem is that the vector in question is being displayed as characters and I need to limit it to numbers between 1:127. I discovered that when left to calculate it ends up in the several thousands both positive and negative.

[Jos (10584)]

This is all quite vague ... What have you tried so far? Did you write some (pseudo-) code or flowchart to start with? What is the expected input and expected output of this "program", in proper matlab variables?

Answer 1

[David Fletcher]

It's easy enough to index the places where the values in the vector are greater than 127 or less than 1

indices=charVector<0 | charVector>127

You need to then decide what to do with the values that are outside the bounds - if you want to set the values to the (same) in-range random number you can use

a(indices)=randi(127)