阵列中最小的N个元素及其位置

使用以下两个输出sort:

% Example data
Acc_Std = randi(10, 1,10);

% Extract the smallest N elements
N = 3;

% Sort, while saving the original indices
[B, indices] = sort(Acc_Std);

% Now extract the N smallest elements
smallest_N = B(1:N);

% Check that they are indeed located at the
% indices returned by sort()
isequal(smallest_N, Acc_Std(indices(1:N)))

执行这个小脚本的结果:

ans =
     1