/*backtest
start: 2019-06-03 00:00:00
end: 2019-07-03 00:00:00
period: 1h
exchanges: [{"eid":"Huobi","currency":"BTC_USDT","balance":10000,"stocks":3}]
*/

// 指标函数
function ADX(MDI, PDI, adx_period) {
    if(typeof(MDI) == "undefined" || typeof(PDI) == "undefined"){
        return false 
    }