Directional Movement Index; developed by J. Welles Wilder.
ADX(HLC, n = 14, maType, ...)
Object that is coercible to xts or matrix and contains High-Low-Close prices.
Number of periods to use for DX calculation (not ADX calculation).
A function or a string naming the function to be called.
Other arguments to be passed to the maType
function.
A object of the same class as HLC
or a matrix (if
try.xts
fails) containing the columns:
The positive Direction Index.
The negative Direction Index.
The Direction Index.
The Average Direction Index (trend strength).
The DIp
/DIn
(positive/negative) is the percentage of the true
range that is up/down.
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 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.
# NOT RUN {
data(ttrc)
dmi.adx <- ADX(ttrc[,c("High","Low","Close")])
# }
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