清空筛选条件
清空筛选条件

Load files from two different folders

38 次查看（过去 30 天）
Paola
Paola 2023-2-24
评论： Paola 2023-3-1
Hi,
I need to upload files from two different folders. I wrote this but it woking just from one folder. How can I add the second folder?
dirname=['D:\Shared\MATLAB\100min\BT']
cd(dirname)
filelist = dir([basename '*_BTlength.mat'])
Thanks

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2023-2-24
编辑：Stephen23 2023-2-24
Do NOT use ADDPATH or CD or any other messing around with the MATLAB search path just for acessing data files.
All MATLAB functions which import/export data files accept relative/absolute filenames. Using relative/absolute filenames is more robust, more efficient, and easier to debug than messing around with CD or the search path. You should use relative/absolute filenames.
For example:
P = 'D:\Shared\MATLAB\100min\BT'; % got rid of the superfluous square brackets.
S = dir(fullfile(P,'*_BTlength.mat'));
for k = 1:numel(S)
F = fullfile(S(k).folder,S(k).name);
% do whatever you want with absolute filename F, e.g.:
D = load(F)
end
See also:
https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html
https://www.mathworks.com/help/matlab/ref/fullfile.html
  3 个评论
显示 1更早的评论
Stephen23
Stephen23 2023-2-25
编辑：Stephen23 2023-2-25
"I would like to add another folder"
It is easy to specify two paths, e.g.:
P1 = 'D:\Shared\MATLAB\100min\BT';
P2 = 'D:\Shared\MATLAB\100min-rep2\BT';
S = [...
dir(fullfile(P1,'*_BTlength.mat'));...
dir(fullfile(P2,'*_BTlength.mat'))];
for k = 1:numel(S)
F = fullfile(S(k).folder,S(k).name);
% do whatever you want with absolute filename F, e.g.:
D = load(F)
end
Alternatively you can use wildcards in the path name as well, e.g.:
P = 'D:\Shared\MATLAB\100min*\BT';
S = dir(fullfile(P,'*_BTlength.mat'));
for k = 1:numel(S)
F = fullfile(S(k).folder,S(k).name);
% do whatever you want with absolute filename F, e.g.:
D = load(F)
end
Paola
Paola 2023-3-1
Thanks, I was not able to find the error. it works now

请先登录，再进行评论。

更多回答（1 个）

Jacob Ward
Jacob Ward 2023-2-24
Use the addpath() function to add the path to your second folder to the working directory:
Add folders to search path - MATLAB addpath (mathworks.com)

类别

在 Help Center 和 File Exchange 中查找有关 Search Path 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by