Matrix of possible combinations

William_jones · Jun 30, 2021 · 1.9K views
Question
I have a vector A of 30 elements. Each of those elements could be one of three values (1, 2 or 3). There are therefore there are 30^3=27000 possible vectors A. How could I create a matrix [30 x 27000] where each colum in that matrix is a unique A?
Expert Answer
Profile picture of John Williams
John Williams PhD Expert
Answered Aug 25, 2026
If you don't have the Deep Learning toolbox,
 
 
 
  [c{1:30}]=ndgrid(1:3);
 allAs=cat(31,c{:});
 allAs=reshape(allAs, [],30).';

Otherwise, you can use combvec,

 c(1:30)={1:3};
 allAs=combvec(c{:});
100% Run Guarantee 3-Hour Fast-Track Delivery

Need a Custom Version or Complete Simulation for This Problem?

Our 500+ PhD engineers build, debug, and optimize working MATLAB scripts and Simulink (.slx) models tailored to your exact assignment rubrics with zero plagiarism.

Tested on MATLAB R2024b / R2026a
Turnitin 0% Plagiarism Report
Free 7-Day Revisions Guarantee
Have a different question? Ask here

Get a Free Consultation or a Sample Assignment Review!