Method constructor

src/utilities/data-formatter.js:8–20

(values, maxThreshold = 0)

 */
export default class DataFormatter {
  constructor(values, maxThreshold = 0) {
    if (values === undefined) return;

    this.values = values;
    // go over all characters and keep track of all unique ones seen
    // count up all characters
    this.indexTable = {};
    this.characterTable = {};
    this.characters = [];
    this.specialIndexes = [];
    this.buildCharactersFromIterable(values);
    this.buildTables(maxThreshold);
  }

  buildCharactersFromIterable(values) {
    let tempCharactersTable = {};