NAME

Stock - A class for writing Excel Stock charts.

SYNOPSIS

To create a simple Excel file with a Stock chart using Excel::Writer::XLSX:

    #!/usr/bin/perl -w

    use strict;
    use Excel::Writer::XLSX;

    my $workbook  = Excel::Writer::XLSX->new( 'chart.xlsx' );
    my $worksheet = $workbook->add_worksheet();

    my $chart     = $workbook->add_chart( type => 'stock' );

    # Add a series for each High-Low-Close.
    $chart->add_series( categories => '=Sheet1!$A$2:$A$6', values => '=Sheet1!$B$2:$B$6' );
    $chart->add_series( categories => '=Sheet1!$A$2:$A$6', values => '=Sheet1!$C$2:$C$6' );
    $chart->add_series( categories => '=Sheet1!$A$2:$A$6', values => '=Sheet1!$D$2:$D$6' );

    # Add the worksheet data the chart refers to.
    # ... See the full example below.

    __END__

DESCRIPTION

This module implements Stock charts for Excel::Writer::XLSX. The chart object is created via the Workbook add_chart() method:

    my $chart = $workbook->add_chart( type => 'stock' );

Once the object is created it can be configured via the following methods that are common to all chart classes:

    $chart->add_series();
    $chart->set_x_axis();
    $chart->set_y_axis();
    $chart->set_title();

These methods are explained in detail in Excel::Writer::XLSX::Chart. Class specific methods or settings, if any, are explained below.

Stock Chart Methods

There aren't currently any stock chart specific methods. See the TODO section of Excel::Writer::XLSX::Chart.

The default Stock chart is an High-Low-Close chart. A series must be added for each of these data sources.

EXAMPLE

Here is a complete example that demonstrates most of the available features when creating a Stock chart.

    #!/usr/bin/perl

    use strict;
    use warnings;
    use Excel::Writer::XLSX;
    use Excel::Writer::XLSX;

    my $workbook    = Excel::Writer::XLSX->new( 'chart_stock.xlsx' );
    my $worksheet   = $workbook->add_worksheet();
    my $bold        = $workbook->add_format( bold => 1 );
    my $date_format = $workbook->add_format( num_format => 'dd/mm/yyyy' );
    my $chart       = $workbook->add_chart( type => 'stock', embedded => 1 );


    # Add the worksheet data that the charts will refer to.
    my $headings = [ 'Date', 'High', 'Low', 'Close' ];
    my $data = [

        [ '2007-01-01T', '2007-01-02T', '2007-01-03T', '2007-01-04T', '2007-01-05T' ],
        [ 27.2,  25.03, 19.05, 20.34, 18.5 ],
        [ 23.49, 19.55, 15.12, 17.84, 16.34 ],
        [ 25.45, 23.05, 17.32, 20.45, 17.34 ],

    ];

    $worksheet->write( 'A1', $headings, $bold );

    for my $row ( 0 .. 4 ) {
        $worksheet->write_date_time( $row+1, 0, $data->[0]->[$row], $date_format );
        $worksheet->write( $row+1, 1, $data->[1]->[$row] );
        $worksheet->write( $row+1, 2, $data->[2]->[$row] );
        $worksheet->write( $row+1, 3, $data->[3]->[$row] );

    }

    $worksheet->set_column( 'A:D', 11 );

    # Add a series for each of the High-Low-Close columns.
    $chart->add_series(
        categories => '=Sheet1!$A$2:$A$6',
        values     => '=Sheet1!$B$2:$B$6',
    );

    $chart->add_series(
        categories => '=Sheet1!$A$2:$A$6',
        values     => '=Sheet1!$C$2:$C$6',
    );

    $chart->add_series(
        categories => '=Sheet1!$A$2:$A$6',
        values     => '=Sheet1!$D$2:$D$6',
    );

    # Add a chart title and some axis labels.
    $chart->set_title ( name => 'High-Low-Close', );
    $chart->set_x_axis( name => 'Date', );
    $chart->set_y_axis( name => 'Share price', );


    $worksheet->insert_chart( 'E9', $chart );

    __END__

This will produce a chart that looks like this:

AUTHOR

John McNamara jmcnamara@cpan.org

COPYRIGHT

Copyright MM-MMXII, John McNamara.

All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.