Commit 55dc3a20 authored by Mike Bostock's avatar Mike Bostock
Browse files

Merge branch 'mean' into 3.4.6

parents c693847f c0e84e2c
......@@ -91,13 +91,13 @@
return x != null && !isNaN(x);
}
d3.mean = function(array, f) {
var n = array.length, a, m = 0, i = -1, j = 0;
var s = 0, n = array.length, a, i = -1, j = n;
if (arguments.length === 1) {
while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
while (++i < n) if (d3_number(a = array[i])) s += a; else --j;
} else {
while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
while (++i < n) if (d3_number(a = f.call(array, array[i], i))) s += a; else --j;
}
return j ? m : undefined;
return j ? s / j : undefined;
};
d3.quantile = function(values, p) {
var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;
......
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