multiBarHorizontalChart reduceYTicks not working

[chris-carrington]

I'm trying to reduce the ticks on the yAxis (the axis with dates), but in the screenshot please see the value of chart but all ticks are showing

As seen in the screenshot I've tried

chart.reduceXTicks = true;
chart.reduceYTicks = true;
chart.yAxis.showMaxMin = true;
chart.yAxis.tickValues = [ few values ];
chart.yAxis.ticks = 4;
chart.xAxis.showMaxMin = true;
chart.xAxis.tickValues = [ few values ];
chart.xAxis.ticks = 4;

But still get all the ticks. & @ http://krispo.github.io/angular-nvd3/#/multiBarHorizontalChart no extended options I've tried reduceTicks either. How may reducing y axis ticks for a multiBarHorizontalChart be done?