Batch curve fitting - file sorting
rahulsrao
Fri, 05/15/2015 - 10:34 am
I have several files that I'd like to run through the Batch Curve Fitting procedure. These are spectral x and y data files, with the names as follows - xspec.1, yspec.1; xspec.2, yspec.2; ... and so on until a few hundred. The issue is that when I load them into the batch file converter, the order of the files changes. For example, if I filter the "y" files and load them, the order appears as follows - yspec.0, yspec.1, yspec.10, yspec.100, yspec.1, yspec.11, and so on. Spectrum number 10 follows number 1, instead of number 2, and of course when I run the fit the coefficients fall in the same order and it's painful to sort through.
Is there a way to automatically order the data into the procedure?
Unfortunately, the files are named so because of the source ascii files. I loaded these using a custom batch loadwave procedure in which I assigned the name of the loaded wave the same as the original filename, minus the ".asc".
It would work for me to rename the files so that they automatically get loaded into the right order in the batch curve fitting procedure, or somehow order them after loading them into the procedure.
Thanks
Rahul
May 15, 2015 at 02:42 pm - Permalink
Batch Curve Fit loads the waves in the order they appear in their data folder. Sadly the only way to re-order those waves is to move a wave out of the data folder, then move it back in - placing it at the end. You could change your custom batch loadwave to load in the desired order. Another option from inside Batch Curve Fit is to add them in the desired order. You can highlight consecutive chunks, then click "Add." I realize that might be a little painful, however.
You could, with some trepidation, try the following function. I whipped it up pretty quickly. It will sort waves in a data folder by simply taking them all out, sorting them in the order I think you want, then placing them back in. It worked in a simple test, but do save a back-up save of your experiment before trying it. Once you've sorted the waves in the data folder Batch Curve Fit should load them in the same order.
// It then deletes that data folder. If you for some crazy reason have a DF with that
// name then change this temporary name!
Function sortWavesInDataFolder(dRef, baseName)
DFREF dRef
String baseName
DFREF currDF = GetDataFolderDFR()
SetDataFolder dRef
NewDataFolder /O root:x____tempDF_____x
DFREF tempDF = root:x____tempDF_____x
String waveNames = WaveList(baseName+"*", ";", "")
Variable nWaves = itemsInList(waveNames)
Variable i
String desiredWaveNames = ""
String currWaveName
for (i=0; i<nWaves; i+=1)
desiredWaveNames += baseName+num2str(i)+";"
endfor
for (i=0; i<nWaves; i+=1)
currWaveName = StringFromList(i, waveNames)
MoveWave dRef:$currWaveName, tempDF
endfor
for (i=0; i<nWaves; i+=1)
currWaveName = StringFromList(i, desiredWaveNames)
MoveWave tempDF:$currWaveName, dRef
endfor
setDataFolder currDF
KillDataFolder tempDF
End
I called it with:
sortWavesInDataFolder(root:testData, "xspec.")
Hope this helps.
Nate Hyde
WaveMetrics
support@wavemetrics.com
May 15, 2015 at 05:47 pm - Permalink
May 16, 2015 at 08:50 am - Permalink
I tried the function but it seems like it's deleting all the waves. They disappear after I run the function.
Rahul
May 16, 2015 at 09:46 am - Permalink
I'm not sure what is wrong with Nate's function. It definitely has some assumptions that are not stated in comments. Also it is too special-purpose for my test. I have written a more generic and better-documented function and posted it at http://www.igorexchange.com/node/6493
May 16, 2015 at 03:48 pm - Permalink
Thank you very much! It works like a charm!!
:)
Rahul
May 16, 2015 at 05:56 pm - Permalink