在 MATLAB 中动态命名结构体变量

我有几个文件“2011-01-01.txt”，“2013-01-02.txt”，“2015-02-01.txt”等。 我希望为每个文件创建一个结构变量，以便（值是组成的）：

machine20110101.size=[1,2,3];
machine20110101.weight=2345;
machine20110101.price=3456;

machine20130102.size=[2,3,4];
machine20130102.weight=1357;
machine20130102.price=123;

machine20150201.size=[1,2,4];
machine20150201.weight=1357;
machine20150201.price=123;

And,

save('f20110101.mat','machine20110101');
save('f20130102.mat','machine20130102') ;
save('f20150201.mat','machine20150201');

正如我们所看到的，结构名称是从文件名称派生的。如何构造上述结构变量？

查了好久，没明白怎么用genvarname.

还有这些链接（matlab中的动态变量名 https://stackoverflow.com/questions/29545862/dynamic-variable-names-in-matlab, matlab动态变量声明函数 https://stackoverflow.com/questions/22586958/dynamic-variable-declaration-function-matlab, 在 MATLAB 中动态更改循环内的变量名称 https://stackoverflow.com/questions/26916160/dynamically-change-variable-name-inside-a-loop-in-matlab）没有解决我的问题。

我使用的是 MATLAB R2012b，所以函数如下matlab.lang.makeUniqueStrings此版本之后定义的不可用。

现在我在 MATLAB 面前，这是一个基于我上面的评论的示例，利用动态字段名称 http://www.mathworks.com/help/matlab/matlab_prog/generate-field-names-from-variables.html使用修剪的文件名fileparts http://www.mathworks.com/help/matlab/ref/fileparts.html and regexprep http://www.mathworks.com/help/matlab/ref/regexprep.html in a cellfun http://www.mathworks.com/help/matlab/ref/cellfun.html call.

% Sample list for testing here, use uigetdir with dir or whatever method to
% get a list of files generically
filelist = {'C:\mydata\2011-01-01.txt', ...
                'C:\mydata\2012-02-02.txt', ...
                'C:\mydata\2013-03-03.txt', ...
                'C:\mydata\2014-04-04.txt', ...
                };
nfiles = length(filelist);

% Get filenames from your list of files
[~, filenames] = cellfun(@fileparts, filelist, 'UniformOutput', false);

% Prune unwanted characters from each filename and concatenate with 'machine'
prunedfilenames = regexprep(filenames, '-', '');
myfieldnames = strcat('machine', prunedfilenames);

% Generate your structure
for ii = 1:nfiles
    % Parse your files for the data, using dummy variables since I don't 
    % know how your data is structured
    loadedsize = [1, 2, 3];
    loadedweight = 1234;
    loadedprice = 1234;

    % Add data to struct array
    mydata.(myfieldnames{ii}).size = loadedsize;
    mydata.(myfieldnames{ii}).weight = loadedweight;
    mydata.(myfieldnames{ii}).price = loadedprice;
end

@patrik 在评论中提出了一些好的观点。我认为他希望看到的更通用的方法（如果我错了，请纠正我）是这样的：

% Sample list for testing here, use uigetdir with dir or whatever method to
% get a list of files generically
filelist = {'C:\mydata\2011-01-01.txt', ...
                'C:\mydata\2012-02-02.txt', ...
                'C:\mydata\2013-03-03.txt', ...
                'C:\mydata\2014-04-04.txt', ...
                };
nfiles = length(filelist);

% Get filenames from your list of files
[~, filenames] = cellfun(@fileparts, filelist, 'UniformOutput', false);

% Prune unwanted characters from each filename and concatenate with 'machine'
prunedfilenames = regexprep(filenames, '-', '');
mytags = strcat('machine', prunedfilenames);

% Preallocate your structure
mydata = repmat(struct('tag', '', 'size', [1, 1, 1], 'weight', 1, 'price', 1), nfiles, 1);

% Fill your structure
for ii = 1:nfiles
    % Parse your files for the data, using dummy variables since I don't 
    % know how your data is structured
    loadedsize = [1, 2, 3];
    loadedweight = 1234;
    loadedprice = 1234;

    % Add data to struct array
    mydata(ii).tag = mytags{ii};
    mydata(ii).size = loadedsize;
    mydata(ii).weight = loadedweight;
    mydata(ii).price = loadedprice;
end