d3.ticks(start, stop, count) Returns an array of approximately count + 1 uniformly-spaced, nicely-rounded

d3.zip(arrays…) Returns an array of arrays, where the ith array contains the ith element from each of the

d3.ascending(a, b) Returns -1 if a is less than b, or 1 if a is greater than b, or

d3.thresholdSturges(values) Returns the number of bins according to

d3.tickStep(start, stop, count) Returns the difference between adjacent tick values if the same arguments were

d3.median(array[, accessor]) Returns the median of the given array of numbers using the

d3.sum(array[, accessor]) Returns the sum of the given array of numbers. If the array is empty, returns 0. An

d3.transpose(matrix) Uses the zip operator as

d3.merge(arrays) Merges the specified arrays into a single array. This method is similar to the built-in array concat

d3.bisectLeft(array, x[, lo[, hi]]) Returns the insertion point for x in array to maintain