maia-util/dist/score_segment_against_template.js

Utility math and music functions supporting various applications by Music Artificial Intelligence Algorithms, Inc.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = score_segment_against_template;
function score_segment_against_template(segment, template) {
  // Tom Collins 26/10/2011.
  // In
  // segment Object mandatory
  // template Array mandatory
  // Out Integer
  // This is Pardo and Birmingham's (2002) scoring function.

  var d = segment.points.length;
  var t = template.length;
  var member = new Array(d);
  for (var i = 0; i < d; i++) {
    member[i] = segment.points[i][1] % 12;
  }
  var n = 0;
  var m = 0;
  var p = 0;
  for (var _i = 0; _i < t; _i++) {
    if (member.indexOf(template[_i]) === -1) {
      m++;
    }
  }
  for (var k = 0; k < d; k++) {
    if (template.indexOf(member[k]) === -1) {
      n++;
    } else {
      p++;
    }
  }
  return p - m - n;
}