/ 
bioperl-1.5.2_004-RCd
/ Bio::PopGen::IO::csv

NAME

Bio::PopGen::IO::csv -Extract individual allele data from a CSV parser

SYNOPSIS

#Do not use directly, use through the Bio::PopGen::IO driver

use Bio::PopGen::IO;
my $io = new Bio::PopGen::IO(-format => 'csv',
                             -file   => 'data.csv');

# Some IO might support reading in a population at a time

my @population;
while( my $ind = $io->next_individual ) {
    push @population, $ind;
}

DESCRIPTION

This object will parse comma delimited format (CSV) or whatever delimiter you specify. It currently doesn't handle the more complex quote escaped CSV format. There are 3 initialization parameters, the delimiter (-field_delimiter) [default ','], (-allele_delimiter) [default ' ']. The third initialization parameter is a boolean -no_header which specifies if there is no header line to read in. All lines starting with '#' will be skipped

When no_header is not specific the data is assumed to be of the following form. Having a header line this SAMPLE,MARKERNAME1,MARKERNAME2,...

and each data line having the form (diploid data) SAMP1,101 102,100 90,a b or for haploid data SAMP1,101,100,a

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

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.org

CONTRIBUTORS

Matthew Hahn, matthew.hahn-at-duke.edu

APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a _

new

Title   : new
Usage   : my $obj = new Bio::PopGen::IO::csv();
Function: Builds a new Bio::PopGen::IO::csv object 
Returns : an instance of Bio::PopGen::IO::csv
Args    : [optional, these are the current defaults] 
          -field_delimiter => ','
          -allele_delimiter=> '\s+'
          -no_header       => 0,

flag

Title   : flag
Usage   : $obj->flag($flagname,$newval)
Function: Get/Set the flag value
Returns : value of a flag (a boolean)
Args    : A flag name, currently we expect 
          'no_header', 'field_delimiter', or 'allele_delimiter' 
          on set, new value (a boolean or undef, optional)

next_individual

Title   : next_individual
Usage   : my $ind = $popgenio->next_individual;
Function: Retrieve the next individual from a dataset
Returns : L<Bio::PopGen::IndividualI> object
Args    : none

next_population

Title   : next_population
Usage   : my $ind = $popgenio->next_population;
Function: Retrieve the next population from a dataset
Returns : L<Bio::PopGen::PopulationI> object
Args    : none
Note    : Many implementation will not implement this

write_individual

Title   : write_individual
Usage   : $popgenio->write_individual($ind);
Function: Write an individual out in the file format
Returns : none
Args    : L<Bio::PopGen::PopulationI> object(s)

write_population

Title   : write_population
Usage   : $popgenio->write_population($pop);
Function: Write a population out in the file format
Returns : none
Args    : L<Bio::PopGen::PopulationI> object(s)
Note    : Many implementation will not implement this