Parameters    Defaults

FIT windows       
    /
    LEASTSQUARES  
    POISSON       
    ZEROES        
    ERRANALYSIS   
    ITERATIONS(it) 10
    TIME(tt)       60
    LIST          
    NODISPLAY     

Purpose

  Perform fit of the specified function(s) to the data

List of display window names or condition numbers or
# (for temporary window) defining the fit region.
If omitted the fit region is defined by the fit windows.
In any case only displayed data are fitted.

Selects chi-square fitting with the least squares method.
This is the default.
Weighting factors are derived from the symmetrized errors in y-direction.

Selects fitting according to the maximum likelihood method.
With this method the y-value of each data point is assumed to follow
a Poisson distribution, which is appropriate for low counting rates.
Not yet implemented

Include data points with y=0 in the fit. Normally such data are not considered.

Perform an extensive analysis for the fit parameter (asymmetric) errors.
Might be time consuming !

Maximum number of iterations.

Maximum amount of CPU time for a particular fit.
After expiration the iteration loop is aborted.
Unlimited time for tt<=0.

List fit statistics each iteration

Don't display intermediate fit curves