Indexing a matrix that's not in the workspace
1 回表示 (過去 30 日間)
古いコメントを表示
I'm reading through someone else's code and trying to understand it. One thing it would be very helpful to be able to do is to be able to see what entries are in specific places in certain matrixes without having to name them. So for example their code might have at some point:
[1,2,3,4]
What I'd like to be able to do in the Command Window is:
>> [1,2,3,4](3)
ans =
3
but the code as written doesn't work. Is there a way to do this other than naming the variable and then checking the position?
0 件のコメント
採用された回答
TADA
2019 年 7 月 31 日
you can write a utility function to do that
function value = debugPrint(a, i)
value = a(i);
end
%% or using an anonymous function:
debugPrint = @(a,i) a(i);
now you can call it like that:
debugPrint([1,2,3,4], 3)
ans =
3
or use the builtin indexing function subsref for that:
subsref([1,2,3,4], substruct('()', {3}))
0 件のコメント
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Matrices and Arrays についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!