sequential(value) See continuous.

quantile.quantiles() Returns the quantile thresholds. If the range contains n discrete values, the returned array will contain n - 1 thresholds. Values less than the first threshold are considered in the first quantile; values greater than or equal to the first threshold but less than the second threshold are in the second quantile, and so on. Internally, the thresholds array is used with bisect to find the output quantile associated with the given input value.

path.quadraticCurveTo(cpx, cpy, x, y) Draws a quadratic Bézier segment from the current point to the specified point ⟨x, y⟩, with the specified control point ⟨cpx, cpy⟩. Equivalent to context.quadraticCurveTo and SVG’s quadratic Bézier curve commands.

axis.scale([scale]) If scale is specified, sets the scale and returns the axis. If scale is not specified, returns the current scale.

radialArea.startAngle([angle]) Equivalent to area.x0, except the accessor returns the angle in radians, with 0 at -y (12 o’clock). Note: typically angle is used instead of setting separate start and end angles.

quadtree.x([x]) If x is specified, sets the current x-coordinate accessor and returns the quadtree. If x is not specified, returns the current x-accessor, which defaults to: function x(d) { return d[0]; } The x-acccessor is used to derive the x-coordinate of data when adding to and removing from the tree. It is also used when finding to re-access the coordinates of data previously added to the tree; therefore, the x- and y-accessors must be consistent, returning the same value given the sa

hill.ratio([ratio]) Defaults to 1. With a ratio of 0, this projection becomes the Maurer No. 73. As it approaches ∞, the projection converges to the Eckert IV.

d3.zoom() Creates a new zoom behavior. The returned behavior, zoom, is both an object and a function, and is typically applied to selected elements via selection.call.

graticule.precision([angle]) If precision is specified, sets the precision for this graticule, in degrees. If precision is not specified, returns the current precision, which defaults to 2.5°.

d3.randomLogNormal([mu][, sigma]) Returns a function for generating random numbers with a log-normal distribution. The expected value of the random variable’s natural logrithm is mu, with the given standard deviation sigma. If mu is not specified, it defaults to 0; if sigma is not specified, it defaults to 1.