MATLAB/OCTAVE从细胞阵列中不同大小的向量中提取元素 [英] MATLAB/OCTAVE Extracting elements from different sized vectors in a cell array

问题描述

我有一个简单的问题，但我无法弄清楚或在任何地方找到它. 我有一个单元格数组，其中c {1}是一个向量，c {2}是一个向量，但长度不同，最大为c {i}.我想要的是一个向量[c {1}; c {2}; c {3} ... c {i}].最有效的方法是什么?

I have a simple question but I can't figure it out or find it anywhere. I have a cell array where c{1} is a vector and c{2} is a vector but of different lengths, up to c{i}. What I want is one vector that is [c{1};c{2};c{3}...c{i}]. What is the most efficient way to do this?

推荐答案

以下一线甚至可以用于完全不一致的输入:

The following one-liner even works for completely inconsistent inputs:

result = [cell2mat(cellfun(@(x) x(:), A, 'uni', 0)')]'

示例:

针对:

A{1} = [1, 2, 3, 4, 5];
A{2} = [6; 7; 8; 9];
A{3} = [10, 12; 11, 13];

它返回:

result =

     1     2     3     4     5     6     7     8     9    10    11    12    13

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