/ 
bioperl-1.5.2_005-RCb
/ Bio::SeqIO::excel

NAME

Bio::SeqIO::excel - sequence input/output stream from a MSExcel-formatted table

SYNOPSIS

  #It is probably best not to use this object directly, but
  #rather go through the SeqIO handler system. Go:

  $stream = Bio::SeqIO->new(-file => $filename, -format => 'excel');

  while ( my $seq = $stream->next_seq() ) {
	# do something with $seq
  }

DESCRIPTION

This class transforms records in a MS Excel workbook file into Bio::Seq objects. It is derived from the table format module and merely defines additional properties and overrides the way to get data from the file and advance to the next record.

The module permits specifying which columns hold which type of annotation. The semantics of certain attributes, if present, are pre-defined, e.g., accession number and sequence. Additional attributes may be added to the annotation bundle. See Bio::SeqIO::table for a complete list of parameters and capabilities.

You may also specify the worksheet from which to obtain the data, and after finishing one worksheet you may change the name to keep reading from another worksheet (in the same file).

This module depends on Spreadsheet::ParseExcel to parse the underlying Excel file.

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 one of the Bioperl mailing lists. 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 the bugs and their resolution.

Bug reports can be submitted via email or the web:

http://bugzilla.open-bio.org/

AUTHOR - Hilmar Lapp

Email hlapp at gmx.net

APPENDIX

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

new

Title   : new
Usage   : $stream = Bio::SeqIO->new(-file => $filename, -format => 'excel')
Function: Returns a new seqstream
Returns : A Bio::SeqIO stream for a MS Excel format

Args    : Supports the same named parameters as Bio::SeqIO::table,
          except -delim, which obviously does not apply to a binary
          format. In addition, the following parameters are supported.

            -worksheet the name of the worksheet holding the table;
                       if unspecified the first worksheet will be
                       used

worksheet

Title   : worksheet
Usage   : $obj->worksheet($newval)
Function: Get/set the name of the worksheet holding the table. The
          worksheet name may also be a numeric index.

          You may change the value during parsing at any time in
          order to start reading from a different worksheet (in the
          same file).

Example :
Returns : value of worksheet (a scalar)
Args    : on set, new value (a scalar or undef, optional)

close

Title   : close
Usage   :
Function: Close and/or release the resources used by this parser instance.

          We override this here in order to free up the worksheet and
          other related objects.

Example :
Returns :
Args    :

Internal methods

All methods with a leading underscore are not meant to be part of the 'official' API. They are for use by this module only, consider them private unless you are a developer trying to modify this module.

_worksheet

Title   : _worksheet
Usage   : $obj->_worksheet($newval)
Function: Get/set the worksheet object to be used for accessing cells.
Example :
Returns : value of _worksheet (a Spreadsheet::ParseExcel::Worksheet object)
Args    : on set, new value (a Spreadsheet::ParseExcel::Worksheet
          object or undef, optional)

_next_record

Title   : _next_record
Usage   :
Function: Navigates the underlying file to the next record.

          We override this here in order to adapt navigation to data
          in an Excel worksheet.

Example :
Returns : TRUE if the navigation was successful and FALSE
          otherwise. Unsuccessful navigation will usually be treated
          as an end-of-file condition.
Args    :

_get_row_values

Title   : _get_row_values
Usage   :
Function: Get the values for the current line (or row) as an array in
          the order of columns.

          We override this here in order to adapt access to column
          values to data contained in an Excel worksheet.

Example :
Returns : An array of column values for the current row.
Args    :