MATLAB: How to better utilize ‘input’

Question

I am trying to create a program that will take user inputs for different force vectors and weights and the like. I want to make the code give an error message, and re-prompt the user to input an integer if the user inputs a character instead, without the program crashing and MatLab errors being displayed. Any help on how to do this?

Answer 1

I prefer the inputdlg (link) function. It saves the input values to a cell array, so you can then convert and check them yourself before looping back if a returned value is not what you want. If you are requesting multiple inputs, you can even save the correct inputs as the default values so the user doesn’t have to re-enter them.