如何迭代数组并获取数组中每行的行元素 - Matlab

Question

我需要帮助使用for循环将数组中的行元素分配给新变量。 e.g。

y = magic(2)

for i = size(y,1)
    m = y(i,:)
    % do some calculations to row vector 'm' and then iterate to next row vector and      replace previous 'm' with new 'm' and perform same calculations
end

提前感谢您的帮助。

Answer 1

看起来你的问题是for循环，你错过了迭代器i的初始值：

y = magic(2)
for i = 1:size(y,1)
    m = y(i,:)
    % use m
end

Answer 2

更直接：for自动沿着矩阵的列进行迭代;所以你可以使用：

y = magic(2);
for row = y.' %'// transpose y, and iterate through the columns of that
    %// 'row' contains each row of y, but as a column vector. Transpose if needed
end