MATLAB for Engineers - Preallocation of Variables: What, Why, and How

When working with loop structures, programmers often encounter a warning that states the size of a variable or array is changing inside of a loop and that they should consider preallocation. In this video, I'll explain what preallocation is, why you should care, and how to preallocate an array before a for loop in MATLAB. If you are unfamiliar with for loops or array indexing, I would recommend checking out my four-part series on for loops prior to watching this video (links below).

Four-Part Series on for Loops:

Part 1 introduces the basic structure of a for loop and demonstrates a loop pass. Link to Part 1: https://youtu.be/ZcSiHndFQnc

Part 2 focuses on updating the value of a scalar variable during each loop pass. Link to Part 2: https://youtu.be/mQD3xSvgd7s

Part 3 introduces working with arrays and array indexing inside of a for loop. Link to Part 3: https://youtu.be/PjmwlBXhzQM

Part 4 introduces combining loops and logic by nesting the conditional statements if, elseif, and else inside of a loop. Link to Part 4: https://youtu.be/Mthlyc6omfg

The background music in the intro and outro was written and produced by Michael J Calamas for the exclusive use of David Calamas.

Видео MATLAB for Engineers - Preallocation of Variables: What, Why, and How канала Spartan Professor