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Keltner Channels

Created by Chester W. Keltner, Keltner Channels are based on an EMA centerline and ATR band widths. See also STARC Bands for an SMA centerline equivalent. [Discuss] 💬

chart for Keltner Channels

// C# usage syntax
IEnumerable<KeltnerResult> results =
  quotes.GetKeltner(emaPeriods, multiplier, atrPeriods);

Parameters

emaPeriods int - Number of lookback periods (E) for the center line moving average. Must be greater than 1 to calculate. Default is 20.

multiplier double - ATR Multiplier. Must be greater than 0. Default is 2.

atrPeriods int - Number of lookback periods (A) for the Average True Range. Must be greater than 1 to calculate. Default is 10.

Historical quotes requirements

You must have at least 2×N or N+100 periods of quotes, whichever is more, where N is the greater of E or A periods, to cover the convergence periods. Since this uses a smoothing technique, we recommend you use at least N+250 data points prior to the intended usage date for better precision.

quotes is a collection of generic TQuote historical price quotes. It should have a consistent frequency (day, hour, minute, etc). See the Guide for more information.

Response

IEnumerable<KeltnerResult>

This method returns a time series of all available indicator values for the quotes provided.
It always returns the same number of elements as there are in the historical quotes.
It does not return a single incremental indicator value.
The first N-1 periods will have null values since there’s not enough data to calculate.

⚞ Convergence warning: The first N+250 periods will have decreasing magnitude, convergence-related precision errors that can be as high as ~5% deviation in indicator values for earlier periods.

KeltnerResult

Date DateTime - Date from evaluated TQuote

UpperBand double - Upper band of Keltner Channel

Centerline double - EMA of price

LowerBand double - Lower band of Keltner Channel

Width double - Width as percent of Centerline price. (UpperBand-LowerBand)/Centerline

Utilities

See Utilities and helpers for more information.

Chaining

This indicator is not chain-enabled and must be generated from quotes. It cannot be used for further processing by other chain-enabled indicators.