NAME

       Statistics::R::REXP::Language - an R language vector

VERSION

       version 1.0002

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.

       sexptype
           SEXPTYPE of language vectors is "LANGSXP".

       to_pl
           Perl value of the language vector is an array reference to the Perl values of its
           "elements". (That is, it's equivalent to "map {$_-"to_pl}, $vec->elements>.

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) 2017 by University of British Columbia.

       This is free software, licensed under:

         The GNU General Public License, Version 3, June 2007