Retrieve data from Hard Drive (Local Directory)

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Valentino 2012-4-12

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/35249-retrieve-data-from-hard-drive-local-directory

采纳的回答： Richard

How can I build my own m file to retrieve the data from my hard drive.

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Answer 1

Richard 2012-4-12

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I would think that you need to use the dir command. If the files are located in your C drive then:

clear all
TopFolder = 'C:\';
SubFolder = dir(TopFolder);
SubFolder = SubFolder(3:end); % the first two here are just pointers
a = struct2cell(SubFolder);
Name = a(1,:);

This will give you the name of the files where your data is located. You then need to obtain the name of each of the files in that folder:

b = cellfun(@(x)dir(fullfile(TopFolder,x)),Name,'un',0);
c = cellfun(@(x)x(3:end),b,'un',0);
d = cellfun(@(x)struct2cell(x),c,'un',0);
FileS = cellfun(@(x)x(1,:),d,'un',0);

You can then import the data using one of the built in matlab functions:

http://www.mathworks.co.uk/help/techdoc/ref/importdata.html

If your data is stored in a text file I would recommend using textscan.