清空筛选条件
清空筛选条件

Is there a way to "vectorize" this segment of code?

1 次查看（过去 30 天）
David Rikert
David Rikert 2024-2-10
评论： David Rikert 2024-2-10
% turn each of these string array rows into integers
[rows,cols] = size(permsList);
permsNbrs = zeros(rows,1);
a = string(permsList); % convert to string, so we can use strcat
for i = 1:rows
b = "";
for j = 1:cols
b = strcat(b,a(i,j));
end % for j
permsNbrs(i,1) = str2double(b);
end % for i

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2024-2-10
移动：Matt J 2024-2-10
Ran in:
S = string(randi([0,9], 5,4))
S = 5×4 string array
"0" "4" "8" "8" "6" "1" "1" "3" "8" "2" "6" "7" "2" "8" "5" "5" "7" "2" "6" "6"
D = str2double(join(S,""))
D = 5×1
488 6113 8267 2855 7266

更多回答（1 个）

Matt J
Matt J 2024-2-10
编辑：Matt J 2024-2-10
Ran in:
I'm going to guess that this is what you are trying to do.
permsList=string(randi([0,9], 5,4))
permsList = 5×4 string array
"5" "0" "3" "3" "1" "6" "6" "9" "4" "9" "5" "9" "5" "3" "2" "3" "8" "7" "7" "0"
permsNbrs = str2double(permsList)*10.^( width(permsList)-1:-1:0)'
permsNbrs = 5×1
5033 1669 4959 5323 8770
  2 个评论
Matt J
Matt J 2024-2-10
You're quite welcome, but please Accept-click the answer (green button) to indicate so.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Characters and Strings 的更多信息

标签

产品


版本

R2023b

Community Treasure Hunt

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

Start Hunting!

Translated by