[D3FC] Non-numeric axes on X/Y scatter charts

[texodus]

When a user selects a non-numeric column on an axis of an X/Y scatter chart, is there a way to apply a category axis ala Y scatter chart? This is helpful when e.g. you want an aggregate which returns a non-numeric (like "unique" or "dominant") on an axis, which is different than the pivoted column - e.g. in this example, the data is grouped by "State", but we have the dominant 'Sub-Category" for each state as a category on the X axis (D3FC on left, HighCharts on right)

[texodus]

Similarly - when a datetime column is on the axis of an X/Y chart, it should be a datetime axis ala the Y series when pivoted by that column - e.g. in the below, the X axis is showing the datetime stringified and overlapped, rather than the Y line in the following chart.

[andy-lee-eng]

I'll take a look. We should be able to detect the desired axis type easily enough, then we'll see if anything else breaks (though I think it should be fine).

[texodus]

This is fixed in 511 and was released in 0.2.23!