Created by Alexander Elder, the Force Index depicts volume-based buying and selling pressure based on the change in price. [Discuss]
// usage IEnumerable<ForceIndexResult> results = quotes.GetForceIndex(lookbackPeriods);
int - Lookback window (
N) for the EMA of Force Index. Must be greater than 0 and is commonly 2 or 13 (shorter/longer view). Default is 2.
Historical quotes requirements
You must have at least
2×N periods of
quotes, whichever is more, to cover the convergence periods. Since this uses a smoothing technique for EMA, 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.
- This method returns a time series of all available indicator values for the
- 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
Nperiods for will be
nullsince they cannot be calculated.
Convergence warning: The first
N+100periods will have decreasing magnitude, convergence-related precision errors that can be as high as ~5% deviation in indicator values for earlier periods.
DateTime - Date from evaluated
double - Force Index
See Utilities and helpers for more information.
Results can be further processed on
ForceIndex with additional chain-enabled indicators.
// example var results = quotes .GetForceIndex(..) .GetEma(..);
This indicator must be generated from
quotes and cannot be generated from results of another chain-enabled indicator or method.