Line interpolation order in a radar plot in VEGA
In Vega, a declarative visualization grammar, you can specify the order of line interpolation in a radar plot (also known as a polar or spider plot) by defining the `interpolate` property within the mark definition of your Vega specification. The `interpolate` property determines how the lines connecting data points in the radar plot are interpolated. Here's how you can set the interpolation order for a radar plot in Vega: ```json { "data": { "values": [ {"category": "A", "value": 0.5}, {"category": "B", "value": 0.6}, {"category": "C", "value": 0.8}, {"category": "D", "value": 0.7}, {"category": "E", "value": 0.4} ] }, "scales": [ { "name": "category", "type": "point", "domain": {"dat