conditional moments of \(y_t\) with orders \(0:l\)
Parameters:
l (int) – highest order of the conditional moments to derive, l >= 1
Returns:
a list of polys with attribute keyfor =
(‘e^{kt}’,’t’,’k^{-}’,’beta_t’,’mu-theta/2’,’v0-theta’,’theta’,’sigma’,
‘l_{1:n}’, ‘o_{1:n}’, ‘p’,
‘sigma/2k’,’rho-sigma/2k’,’sqrt(1-rho^2)’)