package.src.arrays.mean.js Maven / Gradle / Ivy
import "../math/number";
d3.mean = function(array, f) {
var s = 0,
n = array.length,
a,
i = -1,
j = n;
if (arguments.length === 1) {
while (++i < n) if (d3_numeric(a = d3_number(array[i]))) s += a; else --j;
} else {
while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) s += a; else --j;
}
if (j) return s / j;
};