Matlab求取数组前K个最大值

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clc
clear all
close all
X=[3,7,9,2,25,22,11,5]';
num=4;
max_grad=0;
index=1;
corrsepond_index=[];
for i=1:size(X,1)
    max_grad=X(i);
    for j=1:size(X)
        if j~=i
            if X(j)>=max_grad
                max_grad=X(j);
                index=j;
                
            end
            
        end
        
    end
    corrsepond_index=[corrsepond_index;index];
    if size(corrsepond_index,1)==num
        
        break;
    end
        
    X(index)=0;
end

发表至：mp

2015-10-27

# MatLab