How to Speed Up MATLAB Code

Explore tips and tricks that show how to speed up MATLAB code. This video shows you ways to measure how long the code takes to run, and it outlines how to identify which parts of the code are slow. Then, based on the type of slow down, it shows best practices like preallocation, vectorization, or parfor (in Parallel Computing Toolbox™) for making the code run faster.

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[brucelau]

1 min watch time saves me 6hours, great thanks

[alirasoulzadeh]

thank you!
one irrelevant question: what software did you use for recording the screen and how did you implement zoom-ins and zoom-outs in it?

[sukshithshetty]

Best Video sir
understood my mistakes

[kuzgun_TR]

Thanks for video, Can ı ask you one question , How do I perform prelocation when creating an array using a for loop?

for example
Vcruise=[];
HPreq=[];
speedvalue=160 (maybe much more big values for other operations) ;


for i=1:1:speedvalue

Vcruise=[Vcruise, i];

Ptotal_fwd=....
....
HPreq=[HPreq, PTotal_fwd];
end

and some graphical operations

[CityJumpr]

Is there a memory profiler for MATLAB? (for non Windows OS) In R2020a the profiler is really cool.

[Robotg]

Fix the subtitles, where he says "500" the subtitles report "100" and "120". There's a nonsense part where it is written "Now using tic toc, we see that our code is faster now taking around 250 seconds to run as opposed to 120 before"

[nadiarehman]

Hello sir please guide me. In my matlab code show orange error please guide how can I remove this error.