Interpolation Methods

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Documentation for package ‘interp’ version 1.1-6

• DESCRIPTION file.
• User guides, package vignettes and other documentation.

Help Pages

interp-package	Interpolation of data
akima	Waveform Distortion Data for Bivariate Interpolation
akima474	Sample data from Akima's Bicubic Spline Interpolation code (TOMS 474)
arcs	Extract a list of arcs from a triangulation object.
area	Extract a list of triangle areas from a triangulation object.
aSpline	Univariate Akima interpolation
aspline	Univariate Akima interpolation
bicubic	Bivariate Interpolation for Data on a Rectangular grid
bicubic.grid	Bicubic Interpolation for Data on a Rectangular grid
BiLinear	Bilinear Interpolation for Data on a Rectangular grid
bilinear	Bilinear Interpolation for Data on a Rectangular grid
BiLinear.grid	Bilinear Interpolation for Data on a Rectangular grid
bilinear.grid	Bilinear Interpolation for Data on a Rectangular grid
cells	extract info about voronoi cells
circles	plot circles
circtest	circtest / sample data
circtest2	circtest / sample data
circum	Determine the circumcircle (and some other characteristics) of a triangle
circumcircle	Determine the circumcircle of a set of points
convex.hull	Return the convex hull of a triangulation object
ConvexHull	Return the convex hull of a triangulation object
franke	Test datasets from Franke for interpolation of scattered data
franke.data	Test datasets from Franke for interpolation of scattered data
franke.fn	Test datasets from Franke for interpolation of scattered data
identify.triSht	Identify points in a triangulation plot
in.convex.hull	Determines if points are on or in the convex hull of a triangulation object
interp	Interpolation function
interp2xyz	From interp() Result, Produce 3-column Matrix
interpp	Pointwise interpolate irregular gridded data
left	Determines if a point is on or left of the vector described by two other points.
locpoly	Local polynomial fit.
nearest.neighbours	Nearest neighbour structure for a data set
neighbours	List of neighbours from a triangulation or voronoi object
on	Determines if a point is on or left of the vector described by two other points.
on.convex.hull	Determines if points are on or in the convex hull of a triangulation object
outer.convhull	Version of outer which operates only in a convex hull
plot.triSht	Plot a triangulation object
plot.voronoi	Plot a voronoi object
plot.voronoi.polygons	plots an voronoi.polygons object
print.summary.triSht	Print a summary of a triangulation object
print.summary.voronoi	Print a summary of a voronoi object
print.triSht	Print a triangulation object
print.voronoi	Print a voronoi object
summary.triSht	Return a summary of a triangulation object
summary.voronoi	Return a summary of a voronoi object
tri.find	Locate a point in a triangulation
tri.mesh	Delaunay triangulation
triangles	Extract a list of triangles from a triangulation object
triSht	A triangulation object
triSht2tri	Converter to tripack objects
tritest	tritest / sample data
tritest2	tritest / sample data
voronoi	Voronoi object
voronoi.area	Calculate area of Voronoi polygons
voronoi.findrejectsites	Find the Voronoi sites at the border of the region (to be rejected).
voronoi.mosaic	Voronoi mosaic
voronoi.polygons	extract polygons from a voronoi mosaic