How to create a cell array with binary numbers?

3 views (last 30 days)
Nick
Nick on 6 May 2021
Edited: James Tursa on 6 May 2021
I want to create a cell array 1000x11 of binary digits. I wrote the following code but when I run it, I get an array of {0×0 double} instead of {1x11}. What is wrong? How can I do that?
pop = cell(1000,11);
for i = 1:1000
pop{i}=randi([0 1],1,11)
end

Answers (1)

James Tursa
James Tursa on 6 May 2021
Edited: James Tursa on 6 May 2021
Your pop variable has 1000x11 = 11000 elements. Your for-loop only assigns values to 1000 of those elements (the first column). The rest are left as NULL which evaluates to 0x0 doubles. E.g., pop{i} = etc assigns that 1x11 array to a single element of pop, not spread out to 11 elements of pop.
If you want random 0 & 1 digits I would suggest you simply use a numeric or logical array instead of a cell array. E.g.,
pop = rand(1000,11) < 0.5;
Then to get at the binary digits you just need to access the rows of pop. E.g., pop(i,:) is the i'th row which contains the 11 binary digits.

Categories

Find more on Startup and Shutdown in Help Center and File Exchange

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!