非细胞阵列在Matlab uigetfile [英] Non-cell array with uigetfile in Matlab

问题描述

我的code有2个部分。第一部分是编程这样一个文件自动打开：

My code has 2 parts. First part is an automatic file opening programmed like this :

fichierref = 'H:\MATLAB\Archive_08112012';
files = dir(fullfile(fichierref, '*.txt'));
numberOfFiles = numel(files);
delimiterIn = ' ';
headerlinesIn = 11;
for d = 1:numberOfFiles
    filenames(d) = cellstr(files(d).name);
end

for i=1:numberOfFiles
    data = importdata(fullfile(fichierref,filenames{i}),delimiterIn,headerlinesIn);
end

后来，我希望用户选择自己的文件进行分析。有这个虽然问题。我输入的线如下：

Later on, I want the user to select his files for analysis. There's a problem with this though. I typed the lines as follow :

reference = warndlg('Choose the files from which you want to know the magnetic field');
uiwait(reference);
filenames = uigetfile('./*.txt','MultiSelect', 'on');
numberOfFiles = numel(filenames);
delimiterIn = ' ';
headerlinesIn = 11;

它给我下面的错误后，我preSS上的提示OK：

It's giving me the following error, after I press OK on the prompt:

Cell contents reference from a non-cell array object.

Error in FreqVSChampB_no_spec (line 149)
data=importdata(filenames{1},delimiterIn,headerlinesIn);

我没能选择任何文本文档的机会。任何人有一个想法，为什么它这样做？

I didn't get the chance to select any text document. Anyone has an idea why it's doing that?

推荐答案

uigetfile 是一个有点恼人与'多选'用时：当您选择多个文件输出被返回作为单元阵列（串）。 然而，当时只有一个文件选择输出类型的字符串（不可以单元阵列与一个单细胞，正如人们所预料）。

uigetfile is a bit of an annoying when used with `MultiSelect': when you select multiple files the output is returned as a cell array (of strings). However, when only one file is selected the output is of type string (not a cell array with a single cell, as one would have expected).

所以，为了解决这个问题：

So, in order to fix this:

filenames = uigetfile('./*.txt','MultiSelect', 'on');
if ~iscell(filenames) && ischar( a )
    filenames = {filenames}; % force it to be a cell array of strings
end
% continue your code here treating filenames as cell array of strings.

编辑：结果
正如@Sam指出，必须验证用户没有在UI上preSS取消（通过检查文件名是一个字符串）。

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