<?php
  include( 'chartlogix.inc.php' );

  // This is an example of using the addDataToSeries function

  $chart = new BarChart();

  // Create all the series first

  $chart->doBarSeries( 'Sales', '00FF00' );
  $chart->doStackedBarSeries( 'Purchases', 'FF0000' );
  // Now add data to each column
  // addDataToSeries( series name, column name, data value )
  $chart->addDataToSeries( 'Sales', 'Jan', 750 );
  $chart->addDataToSeries( 'Purchases', 'Jan', 270 );

  $chart->addDataToSeries( 'Sales', 'Feb', 250 );
  $chart->addDataToSeries( 'Purchases', 'Feb', 630 );

  $chart->addDataToSeries( 'Sales', 'Mar', 710 );
  $chart->addDataToSeries( 'Purchases', 'Mar', 510 );

  $chart->addDataToSeries( 'Sales', 'Apr', 400 );
  $chart->addDataToSeries( 'Purchases', 'Apr', 230 );

  $chart->addDataToSeries( 'Sales', 'May', 690 );
  $chart->addDataToSeries( 'Purchases', 'May', 180 );

  // Output the image

  $chart->drawPNG( 500, 400 );

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