d3.geoArea(feature) Returns the spherical area of the specified GeoJSON feature in steradians. See also path.area, which computes the projected planar area.

d3.transpose(matrix) Uses the zip operator as a two-dimensional matrix transpose.

d3.cluster() Creates a new cluster layout with default settings.

radialArea.angle([angle]) Equivalent to area.x, except the accessor returns the angle in radians, with 0 at -y (12 o’clock).

curve.lineEnd() Indicates the end of the current line segment.

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

set.clear() Removes all values from this set.

pow.tickFormat([count[, specifier]]) See continuous.tickFormat.

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

bonne.parallel([parallel]) Defaults to 45°.