Exponential moving average (EMA) is another form of moving average. It places a greater weight on recent data points, making data more responsive to new information. When used with other indicators, EMAs can help traders confirm significant market moves and gauge their legitimacy.
Moving average convergence divergence (MACD) is an indicator that detects changes in momentum by comparing two moving averages. It can help traders identify possible buy and sell opportunities around support and resistance levels.
Relative strength index (RSI) is mostly used to help traders identify momentum, market conditions and warning signals for dangerous price movements. RSI is expressed as a figure between 0 and 100. An asset around the 70 level is often considered overbought, while an asset at or near 30 is often considered oversold.
Average directional index (ADX) Welles Wilder’s Directional Movement Indicator illustrates the strength of a price trend. It works on a scale of 0 to 100, where a reading of more than 25 is considered a strong trend, and a number below 25 is considered a drift. Traders can use this information to gather whether an upward or downward trend is likely to continue.
## 'getSymbols' currently uses auto.assign=TRUE by default, but will
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