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gfit

• name:
  gfit
• synopsis:

  usage: gfit inputfile [ outputfile] [-xmin= value] [-xmax= value] [-guesses= sigma,mean,height,baseline] [-f1= f1_value] [-f2= f2_value]

• description:
  Fits a gaussian to a data set, finding the sigma, mean, baseline, and height, with the option of generating a new data set containing the fit evaluated at each point.
• files:
  inputfile contains the input data set. If given, outputfile is the name of the file in which are placed the values of the fit evaluated at each abscissa value in inputfile.
• options:

  xmin, xmax

  
  These options allow specification of the minimum and maximum abscissa values a data point may have and still be included in the fit.

  guesses

  
  Specifies starting points for the parameters of the fit.

  f1, f2

  
  Specifies factors controlling the accuracy of the fit. f1_value is the ratio of the initial step size for each parameter to the initial (guessed) value of that parameter. f2_value is the lower limit of this ratio; when this limit is reached for any parameter, optimization of that parameter is stopped. The default values are 100 and , respectively, and rarely need to be changed.

• see also:

  
  lsf, fiteval, expfit, ggen.