必应词典为您提供exponentially-weighted-moving-average的释义,un. 指数加权移动平均数;
ExponentiallyWeightedMovingAverage实现了EWMA,它是线程安全的;其构造器要求输入alpha及initialAvg;alpha越大表示新数据权重越大旧数据权重越小 getAverage返回的是averageBits的值,不过它存储的是double的bit形式,返回的时候使用Double.longBitsToDouble转换会double addValue方法使用(alpha * newValue) + ((1 - alpha) *...
第五部份:EWMA (Exponentially Weighted Moving Average)指数加权移动平均控制图 一、数据随时间变化的权重 二、EWMA图的特点 1、特点 (1)EWMA图对过程位置的稍小变动十分敏感。 (2)EWMA图的每一点都综合考虑了前面子组的信息。 (3)对过程位置的大幅度移动EWMA图没有XBA图敏感。 (4)EWMA图可以应用于单值,也...
The Exponentially Weighted Moving Average (EWMA) is a quantitative or statistical measure used to model or describe a time series. The EWMA is widely used in finance, the main applications being technical analysis and volatility modeling. The moving average is designed as such that ...
指数加权平均值 一下是基于pandas的。 应该是和exponential smoothing or Holt–Winters method 是基于一个基础的。 DEMO, 原址:http://connor-johnson.com/2014/02/01/smoothing-with-exponentially-weighted-moving-averages/ # -*- coding: utf-8 -*- ...
aLong straight pipe attached to the Main Reactor Vessel 长的平直的管子附加主要反应堆压力壳[translate] agarnished with the extra mint 利用额外大量装饰[translate] a1. Five-Year Exponentially-Weighted Moving Average (60 months). 1. 五年指数被衡量的移动平均数(60个月)。[translate]...
In this tutorial, the exponentially weighted moving average (EWMA) is discussed. The EWMA is often used for smoothing irregular fluctuations (i.e., noise) in a time series to permit the data analyst to better reveal trend/cycle patterns over time. Additionally, the EWMA is frequently used to...
moving average (redirected fromExponentially weighted moving average) Financial Acronyms n (Statistics)statistics(of a sequence of values) a derived sequence of the averages of successive subsequences of a given number of members, often used in time series to even out short-term fluctuations and mak...
2) exponential weighted moving average 指数加权移动平均(EWMA)图3) squared prediction error-exponentially weighted moving average(SPE-EWMA) 平方预报误差指数加权移动平均(SPE-EWMA)4) Exponentially Weighted Moving Average Chart (EWMA) 指数加权移动平均控制图(EWMA)...
exponentially weighted moving average 词条 exponentially weighted moving average 专业释义 <证券>指数移动平均线 <经贸>指数加权移动平均数 词条提问