string MATLAB 空单元格（n，m）字符串数组？
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MATLAB empty cell(n,m) array of strings?
提问by HeinrichStack
What is the quickest way to create an empty cell array of strings ?
创建空的字符串元胞数组的最快方法是什么？
cell(n,m)
creates an empty cell array of double.
创建一个空的 double 元胞数组。
How about a similar command but creating empty strings ?
一个类似的命令，但创建空字符串怎么样？
回答by John
Depends on what you want to achieve really. I guess the simplest method would be:
取决于你真正想要达到的目标。我想最简单的方法是：
repmat({''},n,m);
回答by Kavka
Assignment to all cell elements using the colon operator will do the job:
使用冒号运算符分配给所有单元格元素将完成这项工作：
m = 3; n = 5;
C = cell(m,n);
C(:) = {''}
回答by zeFrenchy
The cell array created by cell(n,m) contains empty matrices, not doubles. If you really need to pre populate your cell array with empty strings
cell(n,m) 创建的元胞数组包含空矩阵，而不是双精度矩阵。如果你真的需要用空字符串预先填充你的元胞数组
test = cell(n,m);
test(:) = {''};
test(1,:) = {'1st row'};
test(:,1) = {'1st col'};
回答by Y. Chang
This is a super old post but I'd like to add an approach that might be working. I am not sure if it's working in an earlier version of MATLAB. I tried in 2018+ versions and it works.
Instead of using remat, it seems even more convenient and intuitive to start a cell string array like this:
这是一篇非常老的帖子，但我想添加一种可能有效的方法。我不确定它是否在早期版本的 MATLAB 中工作。我尝试了 2018+ 版本，并且有效。与使用 相比remat，像这样启动一个元胞字符串数组似乎更加方便和直观：
C(1:10) = {''} % Array of empty char
And the same approach can be used to generate cell array with other data types
并且可以使用相同的方法生成具有其他数据类型的元胞数组
C(1:10) = {""} % Array of empty string
C(1:10) = {[]} % Array of empty double, same as cell(1,10)
But be careful with scalers
但要小心缩放器
C(1:10) = {1} % an 1x10 cell with all values = {[1]}
C(1:10) = 1 % !!!Error
C(1:10) = '1' % !!!Error
C(1:10) = [] % an 1x0 empty cell array
