Call two folders (or directories) with the same file in the script

Question

Jacqueline Rigatto 2021-7-26

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/886024-call-two-folders-or-directories-with-the-same-file-in-the-script

评论： Jacqueline Rigatto 2021-8-5

采纳的回答： dpb

在 MATLAB Online 中打开

Hi, I would like to know how I call two folders (or directories) with the same file in the script to make a graph

The folders (or directories) are:

C:\Users\Jacqueline\ERA5\Downloads\O1
C:\Users\Jacqueline\ERA5\Downloads\O2

And the file is: ERA5_2010.nc (both have the same file)

Thank you very much in advance

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Answer 1

dpb 2021-7-26

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/886024-call-two-folders-or-directories-with-the-same-file-in-the-script#answer_754014

在 MATLAB Online 中打开

basedir='C:\Users\Jacqueline\ERA5\Downloads\';
fn='ERA5_2010.nc';
N=2;
for i=1:N
  fqn=fullfile(basedir,num2str(i,'%02d'),fn);   % build fully-qualified filename
  data=.....                                    % read the file here
  % do whatever with this dataset here before finishing loop to go to next
  ...
end

Above is simplest "dead-ahead" to read the fixed number of subdirectories and process each file in turn.

Enhancements begin with using dir to find out how many subdirectories there are so far and iterating over all of them or to build a list and let the user select desired ones.

To keep the data, use a cell array to hold each returned result so don't overwrite each time through the loop.

All sorts of other possibilities will come depending upon just what need to do...