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如题，GetRecords() 是获取K线数据，TA.EMA获取均线数据，那么
var records = exchange.GetRecords(PERIOD_M15)
if (records && records.length > 12) {
var ema = TA.EMA(records, 12)
}
为什么15分钟级别的K线可以用到12天的均线指标里？请问是什么意思，谢谢
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15分钟周期的K线, 这话没毛病. 但是那个12 不是12天, 哥们, 是12根K线, 一根K线代表15分钟. 没有足够的K线, 无法算EMA, var ema = TA.EMA(records, 12)
这个代码的变量名该改改,你就不容易疑惑了. 真正的意思是: var ema12 =TA.EMA(records, 12) // 这句代码就是算出EMA12 均线的值.
5 years ago
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