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HAR(3)-RV model MIDAS weights specification
harstep(p, d, m)
vector of coefficients
parameters for Almon lag
number of the coefficients
the frequency, currently ignored.
Virmantas Kvedaras, Vaidotas Zemlys
MIDAS weights for Heterogeneous Autoregressive model of Realized Volatilty (HAR-RV). It is assumed that month has 20 days.
Corsi, F., A Simple Approximate Long-Memory Model of Realized Volatility, Journal of Financial Econometrics Vol. 7 No. 2 (2009) 174-196