example15.php

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    <?php // content="text/plain; charset=utf-8"
    require_once ("jpgraph/jpgraph.php");
    require_once ("jpgraph/jpgraph_line.php");
    require_once ("jpgraph/jpgraph_error.php");

    $errdatay = array(11,9,2,4,19,26,13,19,7,12);

    // Create the graph. These two calls are always required
    $graph = new Graph(300,200);
    $graph->SetScale("textlin");

    $graph->img->SetMargin(40,30,20,40);
    $graph->SetShadow();

    // Create the linear plot
    $errplot=new ErrorLinePlot($errdatay);
    $errplot->SetColor("red");
    $errplot->SetWeight(2);
    $errplot->SetCenter();
    $errplot->line->SetWeight(2);
    $errplot->line->SetColor("blue");

    // Add the plot to the graph
    $graph->Add($errplot);

    $graph->title->Set("Linear error plot");
    $graph->xaxis->title->Set("X-title");
    $graph->yaxis->title->Set("Y-title");

    $graph->title->SetFont(FF_FONT1,FS_BOLD);
    $graph->yaxis->title->SetFont(FF_FONT1,FS_BOLD);
    $graph->xaxis->title->SetFont(FF_FONT1,FS_BOLD);

    $datax = $gDateLocale->GetShortMonth();
    $graph->xaxis->SetTickLabels($datax);

    // Display the graph
    $graph->Stroke();
    ?>