Is it possible to do multi index command in one line?
40 views (last 30 days)
Show older comments
For example, if I want to get number of columns in an array I would have to do the following:
A = [1 2; 3 4];
mySize = size(A);
myCol = mySize(2);
It adds 2 lines and an extra variable in my code. Is it possible to put them in one line like:
myCol = size(A)(2);
Somthing similar to this because this is not the correct syntax.
Thank you very much!
0 Comments
Accepted Answer
Matt J
on 28 Apr 2021
Edited: Matt J
on 28 Apr 2021
Not in general, but in the case of your example there is a shorter syntax,
myCol=size(A,2)
2 Comments
Steven Lord
on 28 Apr 2021
For some definition of "one line" it is. Write a function:
A = [1 2 3; 4 5 6];
sz = size(A) % for checking
y = getElement(size(A), 2) % The one line
But this has a drawback that the shorter syntax doesn't.
size(A, 3) % A has trailing singleton dimensions
y2 = getElement(size(A), 3)
function y = getElement(x, whichone)
y = x(whichone);
end
More Answers (2)
Matt J
on 28 Apr 2021
An approximation of this can be enabled through some incredibly convoluted OOP methods
It's not worth it...
0 Comments
See Also
Categories
Find more on Matrix Indexing in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!