E02 Chapter Contents (PDF version)
E02 Chapter Introduction
NAG Library Manual

NAG Library Chapter Contents

E02 – Curve and Surface Fitting


E02 Chapter Introduction – a description of the Chapter and an overview of the algorithms available

Routine
Name
Mark of
Introduction

Purpose
E02ACF
Example Text
Example Plot
1 nagf_fit_withdraw_1dmmax
Minimax curve fit by polynomials
Note: this routine is scheduled for withdrawal at Mark 27, see Advice on Replacement Calls for Withdrawn/Superseded Routines for further information.
E02ADF
Example Text
Example Data
Example Plot
5 nagf_fit_1dcheb_arb
Least squares curve fit, by polynomials, arbitrary data points
E02AEF
Example Text
Example Data
Example Plot
5 nagf_fit_1dcheb_eval
Evaluation of fitted polynomial in one variable from Chebyshev series form (simplified parameter list)
E02AFF
Example Text
Example Data
Example Plot
5 nagf_fit_1dcheb_glp
Least squares polynomial fit, special data points (including interpolation)
E02AGF
Example Text
Example Data
Example Plot
8 nagf_fit_1dcheb_con
Least squares polynomial fit, values and derivatives may be constrained, arbitrary data points
E02AHF
Example Text
Example Plot
8 nagf_fit_1dcheb_deriv
Derivative of fitted polynomial in Chebyshev series form
E02AJF
Example Text
8 nagf_fit_1dcheb_integ
Integral of fitted polynomial in Chebyshev series form
E02AKF
Example Text
Example Plot
8 nagf_fit_1dcheb_eval2
Evaluation of fitted polynomial in one variable from Chebyshev series form
E02ALF
Example Text
Example Data
25 nagf_1d_minimax_polynomial
Minimax curve fit by polynomials
E02BAF
Example Text
Example Data
Example Plot
5 nagf_fit_1dspline_knots
Least squares curve cubic spline fit (including interpolation)
E02BBF
Example Text
Example Data
Example Plot
5 nagf_fit_1dspline_eval
Evaluation of fitted cubic spline, function only
E02BCF
Example Text
Example Data
Example Plot
7 nagf_fit_1dspline_deriv
Evaluation of fitted cubic spline, function and derivatives
E02BDF
Example Text
Example Data
7 nagf_fit_1dspline_integ
Evaluation of fitted cubic spline, definite integral
E02BEF
Example Text
Example Data
Example Plot
13 nagf_fit_1dspline_auto
Least squares cubic spline curve fit, automatic knot placement
E02BFF
Example Text
Example Data
24 nagf_fit_1dspline_deriv_vector
Evaluation of fitted cubic spline, function and optionally derivatives at a vector of points
E02CAF
Example Text
Example Data
Example Plot
7 nagf_fit_2dcheb_lines
Least squares surface fit by polynomials, data on lines parallel to one independent coordinate axis
E02CBF
Example Text
Example Data
Example Plot
7 nagf_fit_2dcheb_eval
Evaluation of fitted polynomial in two variables
E02DAF
Example Text
Example Data
Example Plot
6 nagf_fit_2dspline_panel
Least squares surface fit, bicubic splines
E02DCF
Example Text
Example Data
Example Plot
13 nagf_fit_2dspline_grid
Least squares surface fit by bicubic splines with automatic knot placement, data on rectangular grid
E02DDF
Example Text
Example Data
Example Plot
13 nagf_fit_2dspline_sctr
Least squares surface fit by bicubic splines with automatic knot placement, scattered data
E02DEF
Example Text
Example Data
Example Plot
14 nagf_fit_2dspline_evalv
Evaluation of fitted bicubic spline at a vector of points
E02DFF
Example Text
Example Data
14 nagf_fit_2dspline_evalm
Evaluation of fitted bicubic spline at a mesh of points
E02DHF
Example Text
Example Data
23 nagf_fit_2dspline_derivm
Evaluation of spline surface at mesh of points with derivatives
E02GAF
Example Text
Example Data
7 nagf_fit_glin_l1sol
L1-approximation by general linear function
E02GBF
Example Text
Example Data
7 nagf_fit_glinc_l1sol
L1-approximation by general linear function subject to linear inequality constraints
E02GCF
Example Text
Example Data
8 nagf_fit_glin_linf
L-approximation by general linear function
E02JDF
Example Text
Example Data
Example Plot
24 nagf_fit_2dspline_ts_sctr
Spline approximation to a set of scattered data using a two-stage approximation method
E02JEF 24 nagf_fit_2dspline_ts_evalv
Evaluation at a vector of points of a spline computed by E02JDF
E02JFF 24 nagf_fit_2dspline_ts_evalm
Evaluation at a mesh of points of a spline computed by E02JDF
E02RAF
Example Text
7 nagf_fit_pade_app
Padé approximants
E02RBF
Example Text
Example Plot
7 nagf_fit_pade_eval
Evaluation of fitted rational function as computed by E02RAF
E02ZAF
Example Text
Example Data
6 nagf_fit_2dspline_sort
Sort two-dimensional data into panels for fitting bicubic splines
E02ZKF 24 nagf_fit_opt_set
Option setting routine
E02ZLF 24 nagf_fit_opt_get
Option getting routine

E02 Chapter Contents (PDF version)
E02 Chapter Introduction
NAG Library Manual

© The Numerical Algorithms Group Ltd, Oxford, UK. 2016