KST {TTR}R Documentation

Know Sure Thing

Description

The Know Sure Thing (KST) is a smooth, summed, rate of change indicator. Developed by Martin Pring.

Usage

  KST(price, n = c(10, 15, 20, 30), ma1 = list("SMA", n=10), ma2 = ma1, ma3 = ma1, 
         ma4 = list("SMA", n=15), ma.sig = list("SMA", n=10), wts = 1:4)

Arguments

price Price series to use.
n A vector of the number of periods to use in the ROC calculations.
ma1 A list whose first component is a string containing the moving average function name; additional parameters may also be specified as named components. There must be a ma (not including ma.sig) for each period in n.
ma2 See ma1.
ma3 See ma1.
ma4 See ma1.
ma.sig A list whose first component is a string containing the signal moving average function name; additional parameters may also be specified as named components.
wts A vector the same length as n, of the weight for each period (need not sum to one).

Details

For each day (week, month, etc.), the KST calculates the ROC over several periods. Those ROCs are smoothed using the given moving averages, then multiplied by their respective weighting values. The resulting values are summed for each day (month, week, etc.).

Value

A vector containing the Know Sure Thing values.

Note

The KST indicates bullish/bearish momentum as it crosses above/below its moving average. Because the KST tends to lead price action, look for trend confirmation in the price.

The default arguments are for the daily KST. There is also the Long-Term KST, with arguments: n = c(9, 12, 18, 24) - where the periods are months, not days - and the moving average periods are 6, 6, 6, and 9 months, respectively.

Author(s)

Josh Ulrich

References

The following site(s) were used to code/document this indicator:
http://www.pring.com/index.html
http://www.pring.com/movieweb/daily_kst.htm
http://www.pring.com/articles/article28.htm
http://www.pring.com/movieweb/KST_MCM.htm

See Also

See EMA, SMA, etc. for moving average options; and note Warning section. See ROC for the rate-of-change function. See oscillator for other oscillators.

Examples

  data(ttrc)
  kst <- KST(ttrc[,"Close"])

[Package TTR version 0.13-1 Index]