Emma.
トーク情報- boshigakuga
boshigakuga An exponential moving average (EMA) is a type of moving average ( MA) that places a greater weight and significance on the most recent data points. The exponential moving average is also referred to as the exponentially weighted moving average. An exponentially weighted moving average reacts more significantly to recent price changes than a simple moving average ( SMA), which applies an equal weight to all observations in the period.
- boshigakuga
boshigakuga The EMA is a moving average that places a greater weight and significance on the most recent data points. Like all moving averages, this technical indicator is used to produce buy and sell signals based on crossovers and divergences from the historical average. Traders often use several different EMA lengths, such as 10-day, 50-day, and 200-day moving averages.
- boshigakuga
boshigakuga E M A Today = ( Value Today ∗ ( Smoothing 1 + Days)) where: \begin{aligned} &\begin{aligned} EMA_{\text{Today}}=&\left(\text{Value}_{\text{Today}}\ast\left(\frac{\text{Smoothing}}{1+\text{Days}}\right)\right)\\ &+EMA_{\text{Yesterday}}\ast\left(1-\left(\frac{\text{Smoothing}}{1+\text{Days}}\right)\right)\end{aligned}\\ &\textbf{where:}\\ &EMA=\text{Exponential moving average} \end{aligned} E M A Today = ( Value Today ∗ ( 1 + Days Smoothing )) where:
- boshigakuga
boshigakuga While there are many possible choices for the smoothing factor, the most common choice is:
- boshigakuga
boshigakuga That gives the most recent observation more weight. If the smoothing factor is increased, more recent observations have more influence on the EMA.