MatLab Swap Rows or Cols 交换行或列
Matlab是矩阵运算的神器,所以可以很轻易的交换任意行或列,而且写法非常简洁,如下所示:
a = [1 2 3; 4 5 6; 7 8 9]; b = a; b(:,[1;2]) = b(:,[2;1]); % Swap col 1 and 2 c = a; c([1;2],:) = c([2;1],:); % Swap row 1 and 2
Matlab是矩阵运算的神器,所以可以很轻易的交换任意行或列,而且写法非常简洁,如下所示:
a = [1 2 3; 4 5 6; 7 8 9]; b = a; b(:,[1;2]) = b(:,[2;1]); % Swap col 1 and 2 c = a; c([1;2],:) = c([2;1],:); % Swap row 1 and 2