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# $Id$
# BioPerl module for Bio::Expression::FeatureI
# Copyright Allen Day <>, Stan Nelson <>
# Human Genetics, UCLA Medical School, University of California, Los Angeles
# POD documentation - main docs before the code
=head1 NAME
Bio::Expression::FeatureI - an interface class for DNA/RNA features
Do not use this module directly
This provides a standard bioperl interface class for representing
DNA and RNA features. It cannot be instantiated directly, but serves
as an abstract base class for implementors.
=head2 Mailing Lists
User feedback is an integral part of the evolution of this and other
Bioperl modules. Send your comments and suggestions preferably to one
of the Bioperl mailing lists. Your participation is much appreciated. - General discussion - About the mailing lists
=head2 Support
Please direct usage questions or support issues to the mailing list:
rather than to the module maintainer directly. Many experienced and
reponsive experts will be able look at the problem and quickly
address it. Please include a thorough description of the problem
with code and data examples if at all possible.
=head2 Reporting Bugs
Report bugs to the Bioperl bug tracking system to help us keep track
the bugs and their resolution. Bug reports can be submitted via the
=head1 AUTHOR
Allen Day E<lt>allenday@ucla.eduE<gt>
The rest of the documentation details each of the object
methods. Internal methods are usually preceded with a _
# Let the code begin...
package Bio::Expression::FeatureI;
use strict;
use Bio::Root::RootI;
use base qw(Bio::Root::RootI Bio::PrimarySeqI);
use vars qw($DEBUG);
=head2 quantitation()
Title : value
Usage : $val = $ftr->quantitation()
Function: get/set the feature's quantitation
Returns : A numeric value
Args : a new numeric value (optional)
sub quantitation {
=head2 quantitation_units()
Title : quantitation_units
Usage : $units = $ftr->quantitation_units()
Function: get/set the units of the feature's quantitation
Returns : A string or undef
Args : a new string (optional)
sub quantitation_units {
=head2 standard_deviation()
Title : standard_deviation
Usage : $std_dev = $ftr->standard_deviation()
Function: get/set the feature's standard deviation of quantitation()
Returns : A numeric value
Args : a new numeric value (optional)
Comments: no calculation is done here
sub standard_deviation {
=head2 sample_count()
Title : sample_count
Usage : $sample_count = $ftr->sample_count()
Function: get/set the number of samples used to calculate
Returns : An integer
Args : a new integer (optional)
sub sample_count {