BarChartView没有从0开始

[GuanJinsong]

• I've read, understood, and done my best to follow the *CONTRIBUTING guidelines.

What did you do?

条形统计图没有从0开始，请看图
barChartView is not start on zero, look at the picture

这是我的代码
this is my code

_chartView.rightAxis.gridLineDashLengths = @[@4, @2];
_chartView.rightAxis.axisMinimum = 0.0;
_chartView.rightAxis.drawAxisLineEnabled = NO;
_chartView.rightAxis.labelFont = [UIFont systemFontOfSize:12];
_chartView.rightAxis.labelTextColor = hexStringToColor(@"999999");
_chartView.rightAxis.axisLineColor = hexStringToColor(@"#d5d7db");

请问我该怎么做才能让柱形图从0开始
What do I do to start the bar at 0

Charts Environment

Charts version/Branch/Commit Number: 3.3/master
Xcode version: 10.2
Swift version: 5.0
Platform(s) running Charts: iOS 12
macOS version running Xcode: 10.14.4

[GuanJinsong]

同样的代码，把leftAxis和rightAxis互换就没问题，请问这是怎么回事?

[GuanJinsong]

原来左边必须设置值才行，我这里的需求是只显示右边。
已解决