[.quad

Extract a subset of a quadrature scheme.

manip

spatial

Extract.quad

Defines spatial data types and supports geometrical operations
on them. Data types include point patterns, windows (domains),
pixel images, line segment patterns, tessellations and hyperframes.
Capabilities include creation and manipulation of data
(using command line or graphical interaction),
plotting, geometrical operations (rotation, shift, rescale,
affine transformation), convex hull, discretisation and
pixellation, Dirichlet tessellation, Delaunay triangulation,
pairwise distances, nearest-neighbour distances,
distance transform, morphological operations
(erosion, dilation, closing, opening), quadrat counting,
geometrical measurement, geometrical covariance,
colour maps, calculus on spatial domains,
Gaussian blur, level sets of images, transects of images,
intersections between objects, minimum distance matching.
(Excludes spatial data on a network, which are supported by
the package 'spatstat.linnet'.)

Adrian Baddeley

spatstat.geom

Geometrical Functionality of the 'spatstat' Family

Rolf Turner

Ege Rubak

Tilman Davies

Ute Hahn

Abdollah Jalilian

Greg McSwiggan

Sebastian Meyer

Jens Oehlschlaegel

Suman Rakshit

Dominic Schuhmacher

Rasmus Waagepetersen

Extract.quad function

<dl> <dt>x</dt>
<dd>A quadrature scheme (object of class <code>"quad"</code>).</dd> <dt>...</dt>
<dd>Arguments passed to <code>[.ppp</code> to determine the
 subset.</dd></dl>

Arguments

Adrian Baddeley <a href="/link/Adrian.Baddeley%40curtin.edu.au?package=spatstat.geom&version=3.3-2" data-mini-rdoc="spatstat.geom::Adrian.Baddeley@curtin.edu.au">Adrian.Baddeley@curtin.edu.au</a>
 and
 Rolf Turner <a href="/link/rolfturner%40posteo.net?package=spatstat.geom&version=3.3-2" data-mini-rdoc="spatstat.geom::rolfturner@posteo.net">rolfturner@posteo.net</a>

Author

Subset of Quadrature Scheme — Extract.quad

<dl>

 <dt>x</dt>
<dd>A quadrature scheme (object of class <code>"quad"</code>).</dd>

 <dt>...</dt>
<dd>Arguments passed to <code>[.ppp</code> to determine the
 subset.</dd>

</dl>

Adrian Baddeley <a href='mailto:Adrian.Baddeley@curtin.edu.au'>Adrian.Baddeley@curtin.edu.au</a>
 and
 Rolf Turner <a href='mailto:rolfturner@posteo.net'>rolfturner@posteo.net</a>

Extract.quad: Subset of Quadrature Scheme

Description

Usage

Value

Arguments

Author

Details

See Also

Examples