area.y0([y]) If y is specified, sets the y0 accessor to the specified function or number and returns this area

area.defined([defined]) If defined is specified, sets the defined accessor to the specified function or boolean

stack(data[, arguments…]) Generates a stack for the given array of data, returning an array representing each

line.context([context]) If context is specified, sets the context and returns this line generator. If context

arc.startAngle([angle]) If angle is specified, sets the start angle to the specified function or number and

pie.sortValues([compare]) If compare is specified, sets the value comparator to the specified function and

radialLine.curve([curve]) Equivalent to line

radialArea.angle([angle]) Equivalent to area

arc.padRadius([radius]) If radius is specified, sets the pad radius to the specified function or number and

d3.curveLinear(context)