Cell2Mat for cells with different dimensions

71 views (last 30 days)
Hi all
i have a cell array like this: C={(21 24 47 89 57)' , ( 24 21)' , (16 87 47 89 90 99 182)'} i want to obtain a matrix like that:
21 24 16
24 21 87
A= 47 0 47
89 0 89
57 0 90
0 0 99
0 0 182
How can i do that?
Thank you for the help
Regards
  1 Comment
Sara Boznik
Sara Boznik on 16 Aug 2020
The idea is that you first find the longest vector, second step is that you creat matrix of all 0, so if you have n vectors and the longest vector contain m elements: A=zeros(m,n). Than you should transponse every vector to column vector. And write something like that: if exist C(i,j), A(i,j)=C(i,j).
But I don't know how to do it because I get error because of different dimension in C.
Hope that I somehow helped you.
Best of luck.

Sign in to comment.

Accepted Answer

Star Strider
Star Strider on 16 Aug 2020
Edited: Star Strider on 16 Aug 2020
Try this:
C={[21 24 47 89 57]' , [24 21]' , [16 87 47 89 90 99 182]'};
rows = cellfun(@numel,C);
cols = size(C,2);
A = zeros(max(rows),cols);
for k = 1:cols
A(1:rows(k),k) = C{k};
end
producing:
A
A =
21 24 16
24 21 87
47 0 47
89 0 89
57 0 90
0 0 99
0 0 182
EDIT — (16 Aug 2020 at 21:31)
Corrected the preallocation of ‘A’ to use the previously calculated values of ‘rows’ and ‘cols’. Code otherwise unchanged.
.
  6 Comments

Sign in to comment.

More Answers (0)

Categories

Find more on Data Type Conversion in Help Center and File Exchange

Tags

Products


Release

R2019a

Community Treasure Hunt

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

Start Hunting!

Translated by