series-processing/lib/study-builder/operations.js

Time-series processing for forex, market analysis, including MA, EMA,...

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

/**
 * Add 2 series
 *
 * <output series> = <input 1 series> + <input 2 series>
 * OR
 * <output series> = <input 1 series> + <number>
 */
var add = exports.add = function add(outputKey, inputKey1, inputKey2) {
  return function (record) {
    if (typeof record === 'undefined') {
      return null;
    }
    return _defineProperty({}, outputKey, (isNaN(inputKey1) ? record[inputKey1] || 0 : inputKey1) + (isNaN(inputKey2) ? record[inputKey2] || 0 : inputKey2));
  };
};

/**
 * Subtract 2 series
 *
 * <output series> = <input 1 series> - <input 2 series>
 * OR
 * <output series> = <input 1 series> - <number>
 */
var subt = exports.subt = function subt(outputKey, inputKey1, inputKey2) {
  return function (record) {
    if (typeof record === 'undefined') {
      return null;
    }
    return _defineProperty({}, outputKey, (isNaN(inputKey1) ? record[inputKey1] || 0 : inputKey1) - (isNaN(inputKey2) ? record[inputKey2] || 0 : inputKey2));
  };
};

/**
 * Multiply 2 series
 *
 * <output series> = <input 1 series> * <input 2 series>
 * OR
 * <output series> = <input 1 series> * <number>
 */
var mult = exports.mult = function mult(outputKey, inputKey1, inputKey2) {
  return function (record) {
    if (typeof record === 'undefined') {
      return null;
    }
    return _defineProperty({}, outputKey, (isNaN(inputKey1) ? record[inputKey1] || 0 : inputKey1) * (isNaN(inputKey2) ? record[inputKey2] || 0 : inputKey2));
  };
};

/**
 * Divide 2 series
 *
 * <output series> = <input 1 series> / <input 2 series>
 * OR
 * <output series> = <input 1 series> / <number>
 */
var div = exports.div = function div(outputKey, inputKey1, inputKey2) {
  return function (record) {
    if (typeof record === 'undefined') {
      return null;
    }
    return _defineProperty({}, outputKey, (isNaN(inputKey1) ? record[inputKey1] || 0 : inputKey1) / (isNaN(inputKey2) ? record[inputKey2] || 0 : inputKey2));
  };
};

/**
 * Modular 2 series
 *
 * <output series> = <input 1 series> % <input 2 series>
 * OR
 * <output series> = <input 1 series> % <number>
 */
var mod = exports.mod = function mod(outputKey, inputKey1, inputKey2) {
  return function (record) {
    if (typeof record === 'undefined') {
      return null;
    }
    return _defineProperty({}, outputKey, (isNaN(inputKey1) ? record[inputKey1] || 0 : inputKey1) % (isNaN(inputKey2) ? record[inputKey2] || 0 : inputKey2));
  };
};

/**
 * Pow 2 series
 *
 * <output series> = <input 1 series> * <input 2 series>
 * OR
 * <output series> = <input 1 series> * <number>
 */
var pow = exports.pow = function pow(outputKey, inputKey1, inputKey2) {
  return function (record) {
    if (typeof record === 'undefined') {
      return null;
    }
    return _defineProperty({}, outputKey, Math.pow(isNaN(inputKey1) ? record[inputKey1] || 0 : inputKey1, isNaN(inputKey2) ? record[inputKey2] || 0 : inputKey2));
  };
};