How to read a file from a specific directory?

Question

Ashish 2011-8-10

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/13474-how-to-read-a-file-from-a-specific-directory

I'll explain my question with an example.

Lets say I have 26 folders in my working directory named A to Z, and each of these folders have 10 sub-folders with names 1 to 10.

Now, in a function I am preparing, I want to access files in a particular folder, which is defined by the input arguments when i call the function.

If I wanted to point to a file named xyz in folder 5 in folder A, doing it manually on command window would be /A/5/xyz

In my function, A and 5 are defined by the input argument. I tried converting the input argument A and 5 to strings str_fol1 and str_fol2 and point to /str_fol1/str_fol2/xyz and /'str_fol1'/'str_fol2'/xyz but it dint work.

Can anyone guide me, as to how to point to a file when the path to it is being defined by input arguments in a function?

Thanks

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Answer 1

Chirag Gupta 2011-8-10

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/13474-how-to-read-a-file-from-a-specific-directory#answer_18384

在 MATLAB Online 中打开

Use

full_filename = fullfile(str_fol1,str_fol2,filename);

http://www.mathworks.com/help/releases/R2011a/techdoc/ref/fullfile.html

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Jan 2013-5-31

@Pamela: If this question and answer help you, you can vote for it.

sandy 2013-9-5

hi guys...i have a prob here...if i have a folder called 'MAIN',inside this sub folders from A TO Z,which contains many zip files...i need to access those zip files from each folder(A TO Z),and to unzip them..it is possible

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Answer 2

Paulo Silva 2011-8-10

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/13474-how-to-read-a-file-from-a-specific-directory#answer_18386

在 MATLAB Online 中打开

%assuming:
%folder is a string with just the folder name, ex A
%file is a string with just the file name
file=[folder filesep subfolder filesep file]
%code to read the file, it depends on the file type and format

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Tulips 2012-10-20

编辑：Tulips 2012-10-20

hi Silva, can you help me how to display let's say 'the output recognized as bump sign'. the bump sign is red as 1.jpg in a folder. in that folder consist of 10 images with .jpg extension. How cn I rename 1.jpg of the output as bump sign?

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