Uses of Class
com.quantfinlib.volatility.HarRv.Fit
Packages that use HarRv.Fit
Package
Description
Volatility models: EWMA, GARCH-family, HAR-RV, a model-free volatility
index and a systematic/idiosyncratic decomposition.
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Uses of HarRv.Fit in com.quantfinlib.volatility
Methods in com.quantfinlib.volatility that return HarRv.FitModifier and TypeMethodDescriptionstatic HarRv.FitHarRv.fitLog(double[] realizedVariance) Log-HAR: the same regression onln RVwith regressorsln RV_t,ln(mean of 5)andln(mean of 22).static HarRv.FitHarRv.fitWithErrors(double[] realizedVariance) OLS fit of the level HAR with Newey-West standard errors (5 lags).Methods in com.quantfinlib.volatility with parameters of type HarRv.FitModifier and TypeMethodDescriptionstatic doubleHarRv.forecastLog(double[] realizedVariance, HarRv.Fit fit) One-step forecast of RV from a log-HAR fit:exp(ŷ + ½σ̂²), the lognormal mean given the residual variance.