smi: Chart the Stochastic Momentum Index (SMI)

In cryptoQuotes: Open Access to Cryptocurrency Market Data, Sentiment Indicators and Interactive Charts

Chart the Stochastic Momentum Index (SMI)

Description

A high-level plotly::plot_ly()- and plotly::add_lines()-function that interacts with the TTR::SMI()-function. The function adds a subchart with a TTR::SMI()-indicator.

Usage

smi(
 nFastK = 14,
 nFastD = 3,
 nSlowD = 3,
 maType,
 bounded = TRUE,
 smooth = 1,
 upper_limit = 40,
 lower_limit = -40,
 color = "#4682b4",
 ...
)

Arguments

nFastK	Number of periods for fast %K (i.e. the number of past periods to use).
nFastD	Number of periods for fast %D (i.e. the number smoothing periods to apply to fast %K).
nSlowD	Number of periods for slow %D (i.e. the number smoothing periods to apply to fast %D).
maType	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.
bounded	Logical, should current period's values be used in the calculation?
smooth	Number of internal smoothing periods to be applied before calculating FastK. See Details.
upper_limit	A numeric-vector of length 1. 40 by default. Sets the upper limit of the TTR::SMI.
lower_limit	A numeric-vector of length 1. -40 by default. Sets the lower limit of the TTR::SMI.
color	A character-vector of length 1. "#4682b4" by default.
...	For internal use. Please ignore.

Value

An invisible plotly::plot_ly()-object.

Author(s)

Serkan Korkmaz

See Also

Other chart indicators: add_event(), alma(), bollinger_bands(), chart(), dema(), donchian_channel(), ema(), evwma(), fgi(), hma(), lsr(), macd(), rsi(), sma(), volume(), vwap(), wma(), zlema()

Other subchart indicators: add_event(), fgi(), lsr(), macd(), rsi(), volume()

Other momentum indicators: macd(), rsi()

Examples

# script start;

# 1) charting weekly
# BTC using candlesticks
# and indicators
cryptoQuotes::chart(
  ticker = BTC,
  main = cryptoQuotes::kline(),
  sub = list(
    cryptoQuotes::volume(),
    cryptoQuotes::macd()
  ),
  indicator = list(
    cryptoQuotes::bollinger_bands(),
    cryptoQuotes::sma(),
    cryptoQuotes::alma()
  ),
  options = list(
    dark = TRUE,
    deficiency = FALSE
  )
)

# script end;

cryptoQuotes documentation built on Sept. 16, 2025, 1:09 a.m.