From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Wed, 8 Jul 2015 20:46:52 -0400
Subject: Initial commit

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 math/gsurfit/doc/gsacpts.hlp | 56 ++++++++++++++++++++++++++++++++++++++++++++
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+.help gsacpts Aug85 "Gsurfit Package"
+.ih
+NAME
+gsacpts -- accumulate an array of data points into the fit
+.ih
+SYNOPSIS
+include <math/gsurfit.h>
+
+gsacpts (sf, x, y, z, weight, npts, wtflag)
+
+.nf
+pointer	sf		# surface descriptor
+real	x[npts]		# x values, xmin <= x <= xmax
+real	y[npts]		# y values, ymin <= y <= ymax
+real	z[npts]		# z values
+real	weight[npts]	# array of weights
+int	npts		# the number of data points
+int	wtflag		# type of weighting
+.fi
+.ih
+ARGUMENTS
+.ls sf      
+Pointer to the surface descriptor structure.
+.le
+.ls x, y
+Array of x and y values.
+.le
+.ls z      
+Array of data values.
+.le
+.ls weight
+The weights assigned to the data points.
+.le
+.ls npts
+The number of data points.
+.le
+.ls wtflag
+Type of weighting. The options are WTS_USER and WTS_UNIFORM. If wtflag
+equals WTS_USER the weight for each data point is supplied by the user.
+If wtflag equals WTS_UNIFORM the routine sets the weight to 1.
+The weight definitions are contained in the package header file gsurfit.h.
+.le
+.ih
+DESCRIPTION
+GSACCUM calculates the non-zero basis functions for the given x and
+y values, computes the contribution of each data point to the normal
+equations and sums that contribution into the appropriate arrays and
+vectors.
+.ih
+NOTES
+Checking for out of bounds x and y values and INDEF valued data points is
+the responsibility of the calling program.
+.ih
+SEE ALSO
+gsaccum, gsfit, gsrefit
+.endhelp
-- 
cgit 

