Command FPEAKS


       Parameters        Defaults

FPEAKS number          
       /
       GAUSSIAN        
       LORENTZIAN      
       FWHM(ff)         8
       AREA(aa)         0
       SIGNIFICANCE(si) 1

       PROMPT          
       DELETE          
       NODISPLAY       
       NOSEARCH        

Purpose

  Specifies Gaussian or Lorentzian peaks as fit function via automatic search,
  prompting input or global fit windows.

Parameter NUMBER

Maximum number of peaks to be located. If number=* the peaks are
defined by the fit windows (see command FWIN)
assuming that each window contains one peak.

Parameter GAUSSIAN

Specifies Gaussian peaks.

Parameter LORENTZIAN

Specifies Lorentzian peaks.

Parameter FWHM(ff)

Expected peak full widths at half maximum, in units of the x-axis.
The width parameter is needed for the automatic peak search
or if only the peak centres are given (command parameter PROMPT).

Parameter AREA(aa)

Lower limit of net peak areas for automatic peak search.

Parameter SIGNIFICANCE(si)

Lower limit of statistical significance.
Only peaks with standard deviations exceeding statistical fluctuations
by more than a factor si are accepted.

Parameter PROMPT

Peak locations (and heights) are given by graphical cursor
or, if no cursor is available, by terminal input.

Parameter DELETE

Remove peaks from fit function by cursor. Not yet implemented.

Parameter NODISPLAY

Don't display the located peaks.

Parameter NOSEARCH

Don't locate the peaks, just define the specified number of peaks.
Use fit command FPAR to assign start values.