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saianan


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请问怎么让具有两列元素的矩阵按照行之和的大小顺序排列?。
可以考虑做行索引排序 更多的可参考 《视觉大数据智能分析算法实战》[刘衍琦等] A=[1,2; 6,4; 2,7] s = sum(A,2); [~,ind]=sort(s); B = A(ind,:) A =      1...

3 years ago | 0

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怎样从矩阵中取值。
用 : b=a(1:3:end,:)

3 years ago | 0

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