circle(arguments…) Returns a new GeoJSON geometry object of type “Polygon” approximating a circle on the surface of a sphere, with the current center, radius and precision. Any arguments are passed to the accessors.

partition.size([size]) If size is specified, sets this partition layout’s size to the specified two-element array of numbers [width, height] and returns this partition layout. If size is not specified, returns the current size, which defaults to [1, 1].

d3.schemeDark2 An array of eight categorical colors represented as RGB hexadecimal strings.

request.password([value]) If value is specified, sets the password for authentication to the specified string and returns this request instance. If value is not specified, returns the current password, which defaults to null.

d3.timeMonday d3.utcMonday Monday-based weeks (e.g., February 6, 2012 at 12:00 AM).

d3.stackOrderNone(series) Returns the given series order [0, 1, … n - 1] where n is the number of elements in series. Thus, the stack order is given by the key accessor.

d3.interpolateYlGn(t) d3.schemeYlGn Given a number t in the range [0,1], returns the corresponding color from the “YlGn” sequential color scheme represented as an RGB string.

d3.values(object) Returns an array containing the property values of the specified object (an associative array). The order of the returned array is undefined.

d3.brushY() Creates a new one-dimensional brush along the y-dimension.

selection.data([data[, key]]) Joins the specified array of data with the selected elements, returning a new selection that it represents the update selection: the elements successfully bound to data. Also defines the enter and exit selections on the returned selection, which can be used to add or remove elements to correspond to the new data. The specified data is an array of arbitrary values (e.g., numbers or objects), or a function that returns an array of values for each group. When data