4.98 sddssinefit

• description: sddssinefit fits data to the form y = constant + factorsin(2πfreqx + phase).
• examples:
      sddssinefit data.sdds fit.sdds -columns=x,y  
      

• synopsis:
      sddssinefit [inputfile] [outputfile] [-pipe=[input][,output]]  
        [-fulloutput]  
        [-columns=x-name,y-name]  
        [-tolerance=value]  
        [-limits=[evaluations=number][,passes=number]]  
        [-verbosity=integer]  
        [-guess=[constant=constant][,factor=factor][,frequency=freq][,phase=phase]]  
        [-majorOrder=row|column]  
      

• switches:
  • -fulloutput — Includes y-name and y-nameResidual in the output file.
  • -columns=x-name,y-name — Specifies the independent and dependent columns.
  • -tolerance=value — Desired tolerance of simplex minimization. Negative values are fractional, positive numbers are absolute. Default: 1e-6.
  • -limits=[evaluations=number][,passes=number] — Limits for simplex minimization. Default: evaluations=100, passes=5.
  • -verbosity=integer — Sets the level of informational messages. Valid values are 0-4.
  • -guess=[constant=constant][,factor=factor][,frequency=freq][,phase=phase] — Initial guesses for simplex minimization.
  • -majorOrder=row|column — Specifies the binary SDDS layout.
• files: The input file must contain columns x-name and y-name. The output file contains the independent column and fitted values in a column named by appending Fit to y-name. If -fulloutput is given, a residual column named by appending Residual to y-name is also included.
• see also: sddsexpfit(), sddsgenericfit()
• author: C. Saunders, M. Borland, R. Soliday, L. Emery, H. Shang, ANL/APS.