iOS Charts - set minimum y axis range

For Charts 3 (tried on Charts 3.0.2), this works:

chartView.leftAxis.axisMinimum = 0

By default there is a rightAxis as well (at least for bar charts) and the grid won't be aligned if you don't also set:

chartView.rightAxis.axisMinimum = 0

Note: I wrote this as a comment initially but I think it should be an answer to be easier to find for people who end up here from Google.

customAxisMin is Deprecated in latest Charts.

Use property axisMinValue instead!