DataFolder Programming, Movewave PathName help

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Thu, 08/27/2015 - 05:52 am

Hi All,

I was hoping someone could help me with where I'm going wrong in this procedure.

I have a Parent Data Folder with maybe 9 or 10 subdatafolders inside it. (NOTE Parent data folder is itself a subfolder in something else.)

In each data folder there is a 2D wave which i would like to duplicate and then move the duplicate 2D wave to a new data folder that is located in the Parent Data Folder.
Fortunately I only have one 2D matrix in each subfolder beginning with a r so I can fileter it out using wavelist.

I wrote this to try and achieve this:

Function ExtractMatrices(ParentDF)
    DFREF ParentDF
   
     ListFolders() // function that returns a string of the folders contained in the ParentDataFolder similar to wavelist
     SVAR FolderListStr
     Variable numItems = ItemsInList(FolderListStr), i // counts how and indices the item broken by ;
     
     NewDataFolder/O ParentDF:Matrix_Copies
   
    for (i = 0; i<numItems; i+=1) // starts a loop to go through each name
        String DFname = StringFromList(i,FolderListStr,";")
        SetDataFolder DFname
            String findMatrix=Wavelist("r*",";","")
            String matrix= StringFromList(0,findMatrix,";")
            wave mat2D = $matrix
            String DuplicateWaveName= Nameofwave(mat2D)+"_D"
            duplicate/O mat2D, mat2D_D
            rename mat2D_D, $DuplicateWaveName
            movewave mat2D_D, :ParentDF:Matrix_Copies:
        SetDataFolder ParentDF
    endfor
End


Problem 1) I don't think I've quite cracked the best way to reference a path name because when I first tried this function I accidentally had the arrow on the databrowser selecting a subfolder and the function would create the new folder in that data set ignoring what I had written.

Problem 2) Going deeper inside a datafolder seems simple enough but trying to step back out I am having problems. As when I run it I manage to duplicate the first wave but I can't extract it out.


I think i'm missing a few fundamental concepts here through lack of experience so if anyone can help that would be great!

Best wishes,

N
You are right that there is no straight-forward way to get a reference to the parent data folder of a given data folder.

Here is a solution:

Function DupWaveToParentDataFolder(w)
    Wave w

    String dfPath = GetWavesDataFolder(w, 1)            // Full path without wave name
    if (CmpStr(dfPath, "root:") == 0)
        return -1   // Error: wave is in root data folder
    endif
   
    String parentDFPath = dfPath + ":"                  // "::" at the end backs up one level
    DFREF parentDFR = $parentDFPath
   
    String name = NameOfWave(w)
    Duplicate/O w, parentDFR:$name
   
    return 0
End

August 27, 2015 at 07:26 am - Permalink