问题描述
我想删除matlab单元阵列底部的所有空单元.但是，我发现的所有代码示例都将矩阵折叠成一个向量，这不是我想要的.
I want to remove all empty cells at the bottom of a matlab cell array. However all code example that I found collapse the matrix to a vector, which is not what I want.
这段代码
a = { 1, 2; 3, 4; [], []}
emptyCells = cellfun('isempty', a);
a(emptyCells) = []
此向量的结果
但是我想要这个数组
[1] [2]
[3] [4]
我该怎么做?
推荐答案
如果要删除单元格数组中所有单元格都为空的所有行，则可以使用以下方法:
If you want to delete all the rows in your cell array where all cell are empty, you can use the follwing:
a = { 1, 2; 3, 4; [], []}
emptyCells = cellfun('isempty', a);
a(all(emptyCells,2),:) = []
a =
[1] [2]
[3] [4]
它在您的公式中不起作用的原因是，如果您使用数组建立索引，则输出将被整形为向量(因为不能保证将删除整个行或列，而不能保证只是删除某个位置的单个元素).
The reason it didn't work in your formulation is that if you index with an array, the output is reshaped to a vector (since there is no guarantee that entire rows or columns will be removed, and not simply individual elements somewhere).
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