MATLAB:通过扩展名从文件夹加载文件

Question

从具有相同扩展名的文件夹加载所有文件到MATLAB的最简单方法是什么?

我以前的解决方案:

%%% Will load a file if its filename is provided
%%% USAGE: (Best save data to a variable to work with it.)
%%% >> x = loadwrapper('<file_name>')
%%% ... and then use 'x' all the way you want.
%%% <file_name> works with absolute and relative paths, too.
function [ loaded_data ] = loadwrapper( file_name )
    files = dir(file_name);
    loaded_data = load(files.name);
end

和

%%% put this in a new script, in a function it WILL NOT WORK!
%%% and fix your paths, ofc. i left mine in here on purpose.

%%% SETTINGS
folderName='/home/user/folder/';
extension='*.dat';

%%% CODE
concattedString=strcat(folderName, extension);
fileSet=dir(concattedString); 
% loop from 1 through to the amount of rows
for i = 1:length(fileSet)
    % load file with absolute path, 
    % the fileSet provides just the single filename
    load (strcat(folderName, fileSet(i).name)); 
end

%%% TIDY UP
%%% only imported files shall stay in workspace area
clear folderName;
clear extension;
clear concattedString;
clear fileSet;
clear i;

Answer 1

您可以使用dir获取所需的所有文件。然后，您可以使用for循环遍历它们，并为每个循环调用load。例如:

files = dir('C:myfolder*.txt');
for k = 1:length(files)
    load(files(k).name, '-ascii')
end

加载"C:myfolder"中扩展名为"txt"的所有文件。

Answer 2

如果要从一个目录导入所有函数，可以使用addpath:

在matlab中，你在c:matlabwork目录下，点击:

addpath directory_where_all_my_functions_are

导入c:matlabworkdirectory_where_all_my_function_are的所有功能

help addpath在matlab中获取更多信息