html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.sparkline([1, 4, -7, 1, -3, 6, -8, 3]);

    chart.seriesType('column');

​

    // Set hatch fill for negative points.

    chart.negativeHatchFill(function() {

        if (this.index > 1) {

            return {type: 'diagonal-brick'};

        }

    });

​

    chart.title({text: 'Set hatch fill parameter as a function', orientation: 'top'});

    chart.container('container');

    chart.draw();

});