symbol.size([size]) If size is specified, sets the size to the specified function or number and returns this

catmullRom.alpha(alpha) Returns a cubic Catmull–Rom curve with the specified alpha in the range [0, 1]. If

d3.curveStepBefore(context)

radialArea(data) Equivalent to area.

bundle.beta(beta) Returns a bundle curve with the specified beta in the range [0, 1], representing the bundle

radialArea.outerRadius([radius]) Equivalent to

stack.order([order]) If order is specified, sets the order accessor to the specified function or array and

d3.stackOffsetNone(series, order) Applies a zero baseline.

area.x0([x]) If x is specified, sets the x0 accessor to the specified function or number and returns this area

arc.outerRadius([radius]) If radius is specified, sets the outer radius to the specified function or number