Hi DSPGuy,
Thanks for the VI. I've just been fitting a new set of data, and my first impression was that the fit is definitely more robust than before. However, today I got another NaN case, so I slapped my "Replace NaN with 0" VI after yours, and it worked again.
I'll stick with the solution as it is now. Thanks for the help.
Shane.
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)