/ 
bioperl-1.5.2_004-RCf
/ Bio::Map::Marker

NAME

Bio::Map::Marker - An central map object representing a generic marker that can have multiple location in several maps.

SYNOPSIS

  # get map objects somehow

  # a marker with complex localisation
  $o_usat = new Bio::Map::Marker (-name=>'Chad Super Marker 2',
				  -positions => [ [$map1, $position1], 
                                                  [$map1, $position2] 
						] );

  # The markers deal with Bio::Map::Position objects which can also
  # be explicitely created and passed on to markers as an array ref:
  $o_usat2 = new Bio::Map::Marker (-name=>'Chad Super Marker 3',
				  -positions => [ $pos1, 
                                                  $pos2 
						] );

  # a marker with unique position in a map
  $marker1 = new Bio::Map::Marker (-name=>'hypervariable1',
				   -map => $map1,
				   -position => 100
				   );

  # an other way of creating a marker with unique position in a map:
  $marker2 = new Bio::Map::Marker (-name=>'hypervariable2');
  $map1->add_element($marker2);
  $marker2->position(100);

  # position method is a short cut for get/setting unique positions
  # which overwrites previous values
  # to place a marker to other maps or to have multiple positions 
  # for a map within the same map use add_position()

  $marker2->add_position(200);	# new position in the same map
  $marker2->add_position($map2,200); # new map

  # setting a map() in a marker or adding a marker into a map are
  # identical mathods. Both set the bidirectional connection which is
  # used by the marker to remember its latest, default map.

  # Regardes of how marker positions are created, they are stored and
  # returned as Bio::Map::PositionI objects:

  # unique position
  print $marker1->position->value, "\n";
  # several positions
  foreach $pos ($marker2->each_position($map1)) {
     print $pos->value, "\n";
  }

See Bio::Map::Position and Bio::Map::PositionI for more information.

DESCRIPTION

A Marker is a Bio::Map::Mappable with some properties particular to markers. It also offers a number of convienience methods to make dealing with map elements easier.

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 - Chad Matsalla

Email bioinformatics1@dieselwurks.com

CONTRIBUTORS

Heikki Lehvaslaiho heikki-at-bioperl-dot-org Lincoln Stein lstein@cshl.org Jason Stajich jason@bioperl.org Sendu Bala bix@sendu.me.uk

APPENDIX

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

new

 Title   : new
 Usage   : my $marker = new Bio::Map::Marker( -name => 'Whizzy marker',
	                                          -position => $position);
 Function: Builds a new Bio::Map::Marker object
 Returns : Bio::Map::Marker
 Args    :
           -name    => name of this microsatellite 
                       [optional], string,default 'Unknown'
           -default_map => the default map for this marker, a Bio::Map::MapI
           -position => map position for this marker, a Bio::Map::PositionI
           -positions => array ref of Bio::Map::PositionI objects

           position and positions can also take as values anything the
           corresponding methods can take

default_map

Title   : default_map
Usage   : my $map = $marker->default_map();
Function: Get/Set the default map for the marker.
Returns : L<Bio::Map::MapI>
Args    : [optional] new L<Bio::Map::MapI>

map

 Title   : map
 Function: This is a synonym of the default_map() method

		   *** does not actually add this marker to the map! ***

 Status  : deprecated, will be removed in next version

get_position_object

 Title   : get_position_class
 Usage   : my $position = $marker->get_position_object();
 Function: To get an object of the default Position class
           for this Marker. Subclasses should redefine this method.
           The Position returned needs to be a L<Bio::Map::PositionI> with
		   -element set to self.
 Returns : L<Bio::Map::PositionI>
 Args    : none for an 'empty' PositionI object, optionally
           Bio::Map::MapI and value string to set the Position's -map and -value
           attributes.

position

 Title   : position
 Usage   : my $position = $mappable->position();
		   $mappable->position($position);
 Function: Get/Set the Position of this Marker (where it is on which map),
           purging all other positions before setting.
 Returns : L<Bio::Map::PositionI>
 Args    : Bio::Map::PositionI
            OR
           Bio::Map::MapI AND
           scalar
            OR
           scalar, but only if the marker has a default map

add_position

Title   : add_position
Usage   : $marker->add_position($position);
Function: Add a Position to this marker
Returns : n/a
Args    : Bio::Map::PositionI
           OR
          Bio::Map::MapI AND
          scalar
           OR
          scalar, but only if the marker has a default map

positions

Title   : positions
Usage   : $marker->positions([$pos1, $pos2, $pos3]);
Function: Add multiple Bio::Map::PositionI to this marker
Returns : n/a
Args    : array ref of $map/value tuples or array ref of Bio::Map::PositionI

in_map

Title   : in_map
Usage   : if ( $marker->in_map($map) ) {}
Function: Tests if this marker is found on a specific map
Returns : boolean
Args    : a map unique id OR Bio::Map::MapI