CODEWITHSUNDEEP
filematlabcsv
user2355358
user2355358

Reputation: 81

check if a number of files exists in a directory - matlab

How could I check if a number of csv files are present in the current directory?

I have a csv file called PowerOutput.csv, I can see if this exists with

exist('PowerOutput.csv','file')

However, I could have a number of these files e.g. PowerOutput1.csv, PowerOutput2.csv, PowerOutput3.csv and so on.

What is the best way of finding which files exist in a directory?

At the moment I have tried:

TopFolder = pwd;
SubFolder = dir(TopFolder);
SubFolder = {SubFolder.name};
SubFolder(strncmp(SubFolder,'.',1)) = [];

% -- find the number of PowerOutput
num_Power = strncmp({'PowerOutput'}, SubFolder,length('PowerOutput'));
num_Power(num_Power == 0) = [];
num_Power = 1:length(num_Power);

and then I can import the data by:

% -- import inflow 
for i = 1:length(num_Power);
    filename = fullfile(TopFolder,horzcat('PowerOutput',num2str(num_Power(i)),'.csv'));
    fid = fopen(filename);
    headers = textscan(fid, '%s%s', 1, 'delimiter',',');
    dat = textscan(fid,'%s%f%f','delimiter',',','headerlines',1);
    fclose(fid);
end

But this seems like a really long-winded way of doing it. Any suggestions?

Upvotes: 4

Views: 2629

Answers (1)

Shai
Shai

Reputation: 114866

use * in dir:

files = dir( fullfile( TopFolder, SubFolder.name, 'PowerOutput*.cvs' ) );

Upvotes: 5

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