d3.thresholdFreedmanDiaconis(values, min, max) Returns the number of bins according to the Freedman–Diaconis rule; the input values must be numbers.

d3.text(url[, callback]) Creates a request for the text file at the specified url with the default mime type text/plain. This convenience constructor is approximately equivalent to: d3.request(url) .mimeType("text/plain") .response(function(xhr) { return xhr.responseText; }) .get(callback);

d3.symbolWye The Y-shape symbol type.

d3.symbolTriangle The up-pointing triangle symbol type.

d3.symbolStar The pentagonal star (pentagram) symbol type.

d3.symbolSquare The square symbol type.

d3.symbols An array containing the set of all built-in symbol types: circle, cross, diamond, square, star, triangle, and wye. Useful for constructing the range of an ordinal scale should you wish to use a shape encoding for categorical data.

d3.symbolDiamond The rhombus symbol type.

d3.symbolCross The Greek cross symbol type, with arms of equal length.

d3.symbolCircle The circle symbol type.