MATLAB: Checking the existence of any file with a specific extension in a directory

existwildcard

I require to check whether any file exists with a specific extension in a given folder. Let us say, I look for whether any .pdf file is present in my working directory. MATLAB does not accept wildcard commands like

exist('*.m')

Any solution?

Best Answer

Use dir instead. If you only want to know about the existence, then you could simply check if the returned structure is not empty:

~isempty(dir('*.m'))

Related Solutions

MATLAB: How to check if a directory(folder) exists

well, I suppose you want to create if it doesn't exist, after checking... so you could do it like that:

    if ~exist(yourFolder, 'dir')
       mkdir(yourFolder)
    end

It basically check if youFolder does not exist. If that's true, it creates youFolder.

Cheers.

MATLAB: Check Existence of String

Mahesh - when I run your attached code, I observe errors with

 if (out==1)
     newdateTime1=newdateTime;
     temperature=[newdateTime1 temp];
     humidity=[newdateTime1 humi];
     %   temperature[1]=newdateTime1;
     %   humidity[1]=newdateTime1;
 else 
     pressure=[newdateTime press];
 end

because temp, humi, and press are not defined

 Undefined function or variable "temp".

Please correct the code and confirm that you wish to create a variable that tracks the time and temperature, humidity, and pressure for all input (lines). If that is the case, then you could do something like

 temperatureData = [];
 humidityData    = [];
 pressureData    = [];
 fid = fopen('testdata.txt');
 while ~iseof(fid)
     collected=fgets(fid);
     % do your work to figure out the datetime, and temperature t1 and t2
     % update temperature data array
     temperatureData = [temperatureData ; [newdateTime t1 t2]];
     % etc.
 end
 fclose(fid);

Best Answer

Related Solutions

MATLAB: How to check if a directory(folder) exists

MATLAB: Check Existence of String

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