xtabs/benchmark/xtabs.js

A cross tabulation library for Node.js

var xtabs = require("../lib/xtabs");

var sum = function(a) {
  return a.reduce(function(x, y) { return x + y });
};

var mean = function(a) {
  return sum(a) / a.length;
};

var prod = function(a) {
  var res = a.reduce(function(x, y) { return x * y });
  if (res === 0) res = 1;
  return res;
};

var data = {
  department: xtabs.factor(["MIS", "MIS", "HR", "TR", null, "TR", "MIS"]),
  team: xtabs.factor(["Oversea", "PO", "HR", "Tech", null, "Tech", "PO"]),
  gender: xtabs.factor(["M", "F", "F", "M", "F", "M", "M"])
};
var t = xtabs.table(data, "department", "team", "gender");

for (var i = 0; i < 1000; i++) {
  xtabs.prop(t);
  // xtabs.addMargins(t, [0, 1], [[{ n: "Sum", f: sum }, { n: "Mean", f: mean }], [{ n: "Prod", f: prod }]]);
}

var start = Date.now();
for (var i = 0; i < 100000; i++) {
  xtabs.prop(t);
  // xtabs.addMargins(t, [0, 1], [[{ n: "Sum", f: sum }, { n: "Mean", f: mean }], [{ n: "Prod", f: prod }]]);
}
var end = Date.now();

console.log("It took %d milliseconds to run 100000 times.", (end - start));