ADX

0th

Percentile

Welles Wilder's Directional Movement Index

Directional Movement Index; developed by J. Welles Wilder.

Keywords
ts
Usage
ADX(HLC, n = 14, maType, ...)
Arguments
HLC

Object that is coercible to xts or matrix and contains High-Low-Close prices.

n

Number of periods to use for DX calculation (not ADX calculation).

maType

A function or a string naming the function to be called.

Other arguments to be passed to the maType function.

Details

The DIp/DIn (positive/negative) is the percentage of the true range that is up/down.

Value

A object of the same class as HLC or a matrix (if try.xts fails) containing the columns:

DIp

The positive Direction Index.

DIn

The negative Direction Index.

DX

The Direction Index.

ADX

The Average Direction Index (trend strength).

Note

A buy/sell signal is generated when the +/-DI crosses up over the -/+DI, when the DX/ADX signals a strong trend. A high/low DX signals a strong/weak trend. DX is usually smoothed with a moving average (i.e. the ADX).

References

The following site(s) were used to code/document this indicator: http://www.fmlabs.com/reference/DI.htm http://www.fmlabs.com/reference/DX.htm http://www.fmlabs.com/reference/ADX.htm http://www.fmlabs.com/reference/ADXR.htm http://www.equis.com/Customer/Resources/TAAZ/Default.aspx?c=3&p=49 http://linnsoft.com/tour/techind/dirInd.htm http://linnsoft.com/tour/techind/adx.htm http://linnsoft.com/tour/techind/adxr.htm http://stockcharts.com/education/IndicatorAnalysis/indic_ADX.html

See Also

See EMA, SMA, etc. for moving average options; and note Warning section. The DX calculation uses ATR. See aroon, CCI, TDI, VHF, GMMA for other indicators that measure trend direction/strength.

Aliases
  • ADX
  • DI
  • DX
Examples
library(TTR) # NOT RUN { data(ttrc) dmi.adx <- ADX(ttrc[,c("High","Low","Close")]) # }
Documentation reproduced from package TTR, version 0.23-1, License: GPL-2

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