|Bio::Align::PairwiseStatistics(3pm)||User Contributed Perl Documentation||Bio::Align::PairwiseStatistics(3pm)|
Bio::Align::PairwiseStatistics - Base statistic object for Pairwise Alignments
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);
Calculate pairwise statistics.
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.
firstname.lastname@example.org - General discussion http://bioperl.org/wiki/Mailing_lists - About the mailing lists
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.
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:
AUTHOR - Jason Stajich¶
The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _
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>
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>
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>
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]