stat.median not using sorted array

[Charles Weld]

Like your implementation however I noticed that median is currently just returning the median element of the unsorted array not the sorted array and is thus giving incorrect results:

The current implementation:

export function median (arr) {
  if (arr.length < 2) return arr[0];

  var sorted = arr.slice().sort(compare);
  if (sorted.length % 2 === 0) {
    // even
    return (arr[arr.length / 2 - 1] + arr[arr.length / 2]) / 2;
  }
  else {
    // odd
    return arr[(arr.length - 1) / 2];
  }

Proposed fix:

export function median (arr) {
  if (arr.length < 2) return arr[0];

  var sorted = arr.slice().sort(compare);
  if (sorted.length % 2 === 0) {
    // even
    return (sorted [sorted .length / 2 - 1] + sorted [sorted .length / 2]) / 2;
  }
  else {
    // odd
    return sorted [(sorted .length - 1) / 2];
  }

[Jos de Jong]

Thanks for reporting this Charles, it's fixed in v0.2.0.