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User name J.Singh
Log entry time 15:39:04 on May 5,2003
Entry number 100201
keyword=NMR Polarization Fitting VI
i changed a few things in the NMR Fit Vi
(1) you may have noticed that the fits are bad and converge slowly if at all. the fitting routine was calculating the derivative wrong. now it is fixed. thus, if you are anywhere in the right nieghbhorhood, the fit will look good.
(2) the reduced chi^2 that is displayed should be closer to 1. you may recall the in the past a good fit had a rchi^2 ~ 10^-5. now it is closer to 0.1. (i simply used a better estimate for the error for each data point in the sweep.)
(3) b/c of these changes, the calibration constants should be updated. specifically, the NMR sweeps used to calculate the original calibration constants need to be refit and the new calibration constants need to be calculated.