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External module "ql/models/volatility/garch"

Index

Variables

Const tol_level

tol_level: Real = 1e-8

Functions

initialGuess1

  • Initial guess based on fitting ACF - initial guess for fitting acf is a moment matching estimates for mean(r2), acf(0), and acf(1).

    Parameters

    Returns Real

initialGuess2

  • Initial guess based on fitting ACF - initial guess for fitting acf is an estimate of gamma = alpfa+beta based on the property: acf(i+1) = gamma*acf(i) for i > 1.

    Parameters

    Returns Real