stock-indicator
Version:
Stock Indicator Library
21 lines • 1.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.EXPMA = EXPMA;
const index_1 = require("../common/index");
/**
* - Exponential Moving Average (EMA)
* @param {number[]} CLOSE - closing prices of the stock
* @param {number} M1 - number of periods to calculate the EMA，must be greater than 1 and less than the length of the CLOSE array,default is 12
* @param {number} M2 - number of periods to calculate the initial EMA, default is 1，must be less than N,default is 50
* @returns {{ EMA: TMixed[] }} - object with the EMA values，rounded to 3 decimal places
*/
function EXPMA(CLOSE, M1 = 12, M2 = 50) {
// - check input data
(0, index_1.checkArrayOfNumbers)(CLOSE, "CLOSE");
(0, index_1.checkNumber)(M1, 2, CLOSE, "M1", "CLOSE");
(0, index_1.checkNumber)(M2, 2, CLOSE, "M2", "CLOSE");
const EMA1 = (0, index_1.funEMA)(CLOSE, M1, 1).map((item) => (0, index_1.funRound)(item, 3));
const EMA2 = (0, index_1.funEMA)(CLOSE, M2, 1).map((item) => (0, index_1.funRound)(item, 3));
return { EMA1, EMA2 };
}
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