| NEWS | R Documentation |
Nodes and weights for polyCub.SV() were only cached
up to nGQ=59, not 60 as announced in version 0.5-0. Fixed
that which also makes examples truly run without statmod.
In polyCub.SV(), the new special setting
f=NULL means to only compute nodes and weights.
Internal changes to the "gpc.poly" converters
to accommodate spatstat 1.39-0.
polyCub.SV() gained an argument engine to choose
among available implementations. The new and faster C-implementation
is the default. There should not be any numerical differences in the
result of the cubature.
Package statmod is no longer strictly required
(imported). Nodes and weights for Gauss-Legendre quadrature in
polyCub.SV() are now cached in the polyCub package
up to nGQ=60. statmod::gauss.quad is only
queried for a higher number of nodes.
polyCub.iso() ...
could not handle additional arguments for
integrate() given in the control list.
applies the control arguments also
to the numerical approximation of intrfr.
The checkintrfr() function is exported and documented.
Added a ‘CITATION’ file.
plotpolyf() ...
gained an additional argument
print.args, an optional list of arguments passed to
print.trellis() if use.lattice=TRUE.
passed a data frame of coordinates
to f instead of a matrix as documented.
This version solely fixes a missing ‘NAMESPACE’ import to make package polyCub again compatible with older versions of spatstat (< 1.33-0).
rgeos (and therefore the GEOS library) is no longer strictly required (moved from Imports to Suggests).
Added coerce-methods from "Polygons" (or
"SpatialPolygons" or "Polygon") to "owin"
(as(..., "owin")).
S4-style coerce-methods between
"gpc.poly" and "Polygons"/"owin" have been
removed from the package (since we no longer import the formal class
"gpc.poly" from gpclib or rgeos).
However, there are two new functions gpc2owin and
owin2gpc similar to those dropped from spatstat
since version 1.34-0.
Moved discpoly() back to surveillance since
it is only used there.
The latter two changes cause surveillance version 1.6-0 to be incompatible with this new version of polyCub. Appropriate modifications have been made in the new version 1.7-0 of surveillance.
polyCub.SV() thorough optimization of polyCub.SV()-related code
resulted in about 27% speed-up:
use mapply() instead of a for-loop
avoid cbind()
use tcrossprod()
less object copying
xylist() is now exported. It simply extracts
polygon coordinates from various spatial classes (with same unifying
intention as xy.coords()).
A polyregion of class "SpatialPolygons"
of length more than 1 now works in polyCub-methods.
Use aspect ratio of 1 in plotpolyf().
This version solely fixes a few typos and a technical note
from R CMD check in the current R development version
(also import packages into the ‘NAMESPACE’ which are listed
in the “Depends:” field).
New cubature method polyCub.iso() specific to isotropic
functions (thanks to Emil Hedevang for the basic idea).
New function plotpolyf() to plot a polygonal domain on
top of an image of a bivariate function.
The package now depends on R >= 2.15.0 (for .rowSums()).
The package no longer registers "owin" as an S4-class
since we depend on the sp package which does the job. This
avoids a spurious warning (in .simpleDuplicateClass()) upon
package installation.
In discpoly(), the argument r has been renamed
to radius. This is backward compatible by partial argument
matching in old code.
This is the initial version of the polyCub package mainly built on functions previously maintained within the surveillance package. These methods for cubature of polygonal domains have been outsourced into this separate polyCub package since they are of general use for other packages as well.
The polyCub package has more documentation and tests,
avoids the use of gpclib as far as possible (using
rgeos instead), and solves a compatibility issue with
package maptools (use setClass("owin") instead
of setOldClass("owin")).