NAME
Statistics::R::REXP::Language - an R language vector
VERSION
version 0.05
SYNOPSIS
use Statistics::R::REXP::Language
# Representation of the R call C<mean(c(1, 2, 3))>:
my $vec = Statistics::R::REXP::Language->new([
Statistics::R::REXP::Symbol->new('mean'),
Statistics::R::REXP::Double->new([1, 2, 3])
]);
print $vec->elements;
DESCRIPTION
An object of this class represents an R language vector (LANGSXP
). These objects represent calls (such as model formulae), with first element a reference to the function being called, and the remainder the actual arguments of the call. Names of arguments, if given, are recorded in the 'names' attribute (itself as Statistics::R::REXP::Character vector), with unnamed arguments having name ''
. If no arguments were named, the language objects will not have a defined 'names' attribute.
METHODS
Statistics::R::REXP:Language
inherits from Statistics::R::REXP::Vector, with the added restriction that its first element has to be a Statistics::R::REXP::Symbol or another Language
instance. Trying to create a Language instance that doesn't follow this restriction will raise an exception.
BUGS AND LIMITATIONS
Classes in the REXP
hierarchy are intended to be immutable. Please do not try to change their value or attributes.
There are no known bugs in this module. Please see Statistics::R::IO for bug reporting.
SUPPORT
See Statistics::R::IO for support and contact information.
AUTHOR
Davor Cubranic <cubranic@stat.ubc.ca>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2014 by University of British Columbia.
This is free software, licensed under:
The GNU General Public License, Version 3, June 2007