Bio::Align::PairwiseStUsertContributed Perl DBio::Align::PairwiseStatistics(3)NAMEBio::Align::PairwiseStatistics - Base statistic object for Pairwise
Alignments
SYNOPSIS
use strict;
my $stats = Bio::Align::PairwiseStatistics->new();
# get alignment object of two sequences somehow
my $pwaln;
print $stats->number_of_comparable_bases($pwaln);
my $score = $stats->score_nuc($pwaln);
DESCRIPTION
Calculate pairwise statistics.
FEEDBACK
Mailing Lists
User feedback is an integral part of the evolution of this and other
Bioperl modules. Send your comments and suggestions preferably to the
Bioperl mailing list. Your participation is much appreciated.
bioperl-l@bioperl.org - General discussion
http://bioperl.org/wiki/Mailing_lists - About the mailing lists
Support
Please direct usage questions or support issues to the mailing list:
bioperl-l@bioperl.org
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.
Reporting Bugs
Report bugs to the Bioperl bug tracking system to help us keep track of
the bugs and their resolution. Bug reports can be submitted via the
web:
http://bugzilla.open-bio.org/
AUTHOR - Jason Stajich
Email jason-at-bioperl-dot-org
APPENDIX
The rest of the documentation details each of the object methods.
Internal methods are usually preceded with a _
number_of_comparable_bases
Title : number_of_comparable_bases
Usage : my $bases = $stat->number_of_comparable_bases($aln);
Function: Returns the count of the number of bases that can be
compared (L) in this alignment ( length - gaps)
Returns : integer
Args : L<Bio::Align::AlignI>
number_of_differences
Title : number_of_differences
Usage : my $nd = $stat->number_of_distances($aln);
Function: Returns the number of differences between two sequences
Returns : integer
Args : L<Bio::Align::AlignI>
number_of_gaps
Title : number_of_gaps
Usage : my $nd = $stat->number_of_gaps($aln);
Function: Returns the number of gapped positions among sequences in alignment
Returns : integer
Args : L<Bio::Align::AlignI>
score_nuc
Title : score_nuc
Usage : my $score = $stat->score_nuc($aln);
or
my $score = $stat->score_nuc(
-aln =>$aln,
-match => 1,
-mismatch => -1,
-gap_open => -1,
-gap_ext => -1
);
Function: Calculate the score of an alignment of 2 nucleic acid sequences. The
scoring parameters can be specified. Otherwise the blastn default
parameters are used: match = 2, mismatch = -3, gap opening = -5, gap
extension = -2
Returns : alignment score (number)
Args : L<Bio::Align::AlignI>
match score [optional]
mismatch score [optional]
gap opening score [optional]
gap extension score [optional]
perl v5.14.1 2011-07-22 Bio::Align::PairwiseStatistics(3)
