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how to set y-axis scale for BarChart


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can we set the scale of y-axis? or least not to show decimal units when the field/variable returns 0 or 1 or 2? the field/variable is defined as Integer, and it doesn't make sense if the Y axis shows 0.25, 0.5, 0.75...
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Setting the scale or any other attributes of the axes is a JFreeChart activity. Here's some customizer code that adjusts the item margins and autoscale zero behaviour, it will provide some hints on where to start


public void customize(JFreeChart jFreeChart, JRChart jRChart)
super.customize(jFreeChart, jRChart);

CategoryPlot plot = jFreeChart.getCategoryPlot();
BarRenderer renderer = (BarRenderer) plot.getRenderer();
ValueAxis axis = plot.getRangeAxis();
if (axis instanceof NumberAxis) {
NumberAxis naxis = (NumberAxis)axis;
Range rng = plot.getDataRange(naxis);
double max = rng.getUpperBound();
double min = rng.getLowerBound();
boolean iz = ((max - min) > (max/5.0));
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