Load all files in a directory

//This function automatically loads all files in a folder that the user selects. In this instance, the function
//assumes that each file is a Dionex Chromeleon generated ASCII file, and that the chromatogram's data
//points were collected at 0.2 sec. intervals. You MUST must make the changes appropriate to your data
//files on the lines below marked with exclamation points!!!
function loader()
    //initialize loop variable
    variable i=0
    string wname,fname            //wave names and file name, respectively
   
    //Ask the user to identify a folder on the computer
    getfilefolderinfo/D
   
    //Store the folder that the user has selected as a new symbolic path in IGOR called cgms
        //!!!!!!!!! if you prefer a different name, change ALL instances of cgms in the function !!!!!!!!
    newpath/O cgms S_path

    //Create a list of all files that are .txt files in the folder. -1 parameter addresses all files.
       // !!!!!!!!! if your files have a different extension, change .TXT below to your extension!!!!!!!!!!!!
    string filelist= indexedfile(cgms,-1,".TXT")

    //Begin processing the list
    do
        //store the ith name in the list into wname.
        fname = stringfromlist(i,filelist)

        //strip away ".txt" to get the name of the chromatogram, which is the file name
                //!!!!!!!!!! change the next line if you want a different name for the waves that are created !!!!!!!!!!!!!!!
        wname = fname[0,strlen(fname)-5]

        //reference a wave with the name of the chromatogram.
        wave w = $wname
       
        //if the referenced wave does not exist, create it.
        if (!waveexists(w) )

            //The /L parameter tells IGOR to load no headers, and to load the 3rd column of data (indexed as 2) only
                        //!!!!!!!! You must change this next line to tell IGOR how to load the data in each file !!!!!!!!!!!!!!!
            LoadWave/G/D/A=wave/P=cgms/O/L={0,0,0,2,0} stringfromlist(i,filelist)

            //wave created is wave0. It is renamed after the chromatogram.
            rename wave0 $wname

            //And scaled accordingly.
                        //!!!!!!!!! you MUST change or delete the following line according to your data's scaling or lack thereof. !!!!!!!!!!!!
            setscale/P x,0,0.0033333,$wname
            //Print confirmation of what was just loaded.
            print   "Loaded "+fname

        else
            //Othewise, tell the user that this chromatogram was previously loaded.
            print   fname+" was previously loaded. Its corresponding wave exists."
        endif
        i += 1          //move to next file
    while(i<itemsinlist(filelist))          //end when all files are processed.
end
FileLoader_1.ipf

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