I have been able to do Savitsky-Golay smoothing graphically, but I was wondering if there was any way to perform this same function on data in an origin spreadsheet. Thanks.
You can access Savitzky-Golay smoothing from both Origin C and LabTalk. In Origin C, look for the smooth() function which is prototyped in data.h - this function lets you choose a smoothing method (adj. averagning, FFT smoothing, Savitsky-Golay) and can be used on a curve object. A curve object is an Origin object that is an x-y pair.
You can access this smoothing from LabTalk as well, using the Curve object - search for "smoothing" under LabTalk help.