Calculate the Guppy Multiple Moving Average of a series.
Price, volume, etc. series that is coercible to xts or matrix.
Vector of short-term periods.
Vector of long-term periods.
The Guppy Multiple Moving Average signals a changing trend when the
long groups of moving averages intersect. An up/down
trend exists when the short/long-term moving averages are greater than the
A object of the same class as
price or a vector
try.xts fails) containing the Guppy Multiple Moving Average.
The following site(s) were used to code/document this
TDI for other indicators that measure trend