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The TRIX indicator calculates the rate of change of a triple exponential moving average. Developed by Jack K. Hutson.
TRIX(price, n = 20, nSig = 9, maType, percent = TRUE, ...)A object of the same class as price or a vector (if
try.xts fails) containing the TRIX values.
Price series that is coercible to xts or matrix.
Number of periods for moving average.
Number of periods for signal line moving average.
Either:
A function or a string naming the function to be called.
A list with the first component like (1) above, and additional parameters specified as named components. See Examples.
logical; if TRUE, the rate of change is calculated
using the ROC function, otherwise the momentum function is
used.
Other arguments to be passed to the maType function in
case (1) above.
Joshua Ulrich
The TRIX is calculated as follows:
3MA = MA( MA(
MA(price) ) )
trix = 100 * [ 3MA(t) / 3MA(t-1) - 1 ]
The following site(s) were used to code/document this
indicator:
https://www.fmlabs.com/reference/default.htm?url=TRIX.htm
https://www.metastock.com/Customer/Resources/TAAZ/?p=114
https://www.linnsoft.com/techind/trix-triple-smoothed-exponential-oscillator
https://school.stockcharts.com/doku.php?id=technical_indicators:trix
See EMA, SMA, etc. for moving average
options; and note Warning section.
data(ttrc)
trix <- TRIX(ttrc[,"Close"])
trix4 <- TRIX(ttrc[,"Close"],
maType=list(list(SMA), list(EMA, wilder=TRUE), list(SMA), list(DEMA)))
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