GMMA {TTR} | R Documentation |
Calculate the Guppy Multiple Moving Average of a series.
GMMA(x, short = c(3, 5, 8, 10, 12, 15), long = c(30, 35, 40, 45, 50, 60), maType)
x |
Price, volume, etc. series that is coercible to xts or matrix. |
short |
Vector of short-term periods. |
long |
Vector of long-term periods. |
maType |
Either:
|
The Guppy Multiple Moving Average signals a changing trend when the
short
and long
groups of moving averages intersect. An up/down
trend exists when the short/long-term moving averages are greater than the
long/short-term averages.
A object of the same class as x
or price
or a vector
(if try.xts
fails) containing the Guppy Multiple Moving Average.
Joshua Ulrich
The following site(s) were used to code/document this
indicator:
http://www.investopedia.com/terms/g/guppy-multiple-moving-average.asp
See aroon
, CCI
, ADX
,
VHF
, TDI
for other indicators that measure trend
direction/strength.
data(ttrc) gmma <- GMMA(ttrc[,"Close"])