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C Library Functions  - glstsq (3)

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NAME

glstsq(3f) - [M_math] least squares fit to a polynomial expression (LICENSE:PD)

CONTENTS

Synopsis
Description
Options
Pedigree
Notes
License

SYNOPSIS

subroutine glstsq(ideg,x,y,n0,d)

   integer             :: ideg
   real                :: x(*)
   real                :: y(*)
   integer             :: n0
   doubleprecision     :: d(*)

DESCRIPTION

least squares fit to a polynomial expression

OPTIONS

x	X values to fit
y	Y values to fit
ideg	is desired degree of least square fit and test
n0	is number of points in curve arrays (x, y)
d	is returned coefficient array

PEDIGREE

Based on

     graphics compatibility system
                basic
          subroutine ulstsq
              level 13
      written by       Fred  Tracy
      modified by      John S. Urban

NOTES

needs rewritten to normalize data so large numbers causing overflow are not generated.

LICENSE

Public Domain

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Nemo Release 3.1

glstsq (3)

June 29, 2025

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