// Get bubble chart area
var chartArea = bubbleChart.getChartArea();
// Get the Y axis
var axisY = chartArea.getAxisY();
// Delete Y axis object
axisY.dispose();
// Determine axis title
var axisCaption = new PP.Ui.ChartLabel({
    Text: "New text of Y axis"
});
// Determine axis labels
var axisMarkers = new PP.Ui.MarkerCollection({});
// Determine axis brush
var stroke = new PP.SolidColorBrush({
    Color: "#3366FF"
});
// Determine constructor parameters
var settings = {
    AutoMax: true,
    AutoMin: true,
    AxisCrossValue: 0,
    Caption: axisCaption,
    Markers: axisMarkers,
    Stroke: stroke,
    Thickness: 1,
    Type: PP.Ui.VisualType.Y,
    Chart: bubbleChart
};
// Create a new axis object
var newAxisY = new PP.Ui.ChartAxis(settings);
// Set a new axis object
chartArea.setAxisY(newAxisY);
// Render contents of new axis object in the left label area
newAxisY.draw(chartArea.getPaperArea());
// Display bubble chart bubbles with no data
newAxisY.setShowBubblesWithNoData(true);
// Refresh bubble chart
bubbleChart.refresh();