par_accur

par.accur

‘par.accur’ specifies the accuracy for which peak shapes are calculated. Specifically, when lineshapes are initially calculated, if the ratio of the value at a particular position and the maximum of the lineshape falls below ‘par.accur’, then the value at that position is set to zero. Therefore, the closer ‘par.accur’ is to zero, the fewer truncation artifacts. Defaults are 1% of the minimum of ‘par.cutoff’, when using a dynamic peak list, or 1% of the ratio of the minimum initial peak height and maximum initial peak height, when using a fixed peak list. Higher values of ‘par.accur’ will accelerate calculation of full spectra in the FitSpec function, although eventually may lead to significant artifacts in the calculated spectra.

For no lineshape truncation:

par.accur=0;