ajdmom.mdl_2fsv.cov.moment_inner_comb

ajdmom.mdl_2fsv.cov.moment_inner_comb(l1, m1, m2, m3, m4, m5, m6, m7, m8, poly_eIv)[source]

Moment for this inner combination in expansion of \(y_n^{l_1}\)

Parameters:
  • l1 (int) – l1 in \(y_n^{l_1}\).

  • m1 (int) – times of constant being selected.

  • m2 (int) – times of \(v_{1,n-1}\) being selected.

  • m3 (int) – times of \(v_{2,n-1}\) being selected.

  • m4 (int) – times of \(eI_{1,n}\) being selected.

  • m5 (int) – times of \(I_{1,n}\) being selected.

  • m6 (int) – times of \(eI_{2,n}\) being selected.

  • m7 (int) – times of \(I_{2,n}\) being selected.

  • m8 (int) – times of \(I_{n}^{*}\) being selected.

  • poly_eIv (Poly) – poly with attribute keyfor = (‘e^{-k1*nh}eI_{1,n}’,’e^{-k2*nh}eI_{2,n}’, ‘(n_1m*k1+n_2m*k2)^{-i_m},…,(n_11*k1+n_21*k2)^{-i_1}’, ‘e^{-(n1*k1+n2*k2)h}’,’h’, ‘v_{1,n-1}’,’theta1’,’sigma_v1’, ‘v_{2,n-1}’,’theta2’,’sigma_v2’).

Returns:

poly with attribute keyfor = (‘(n_1m*k1+n_2m*k2)^{-i_m},…,(n_11*k1+n_21*k2)^{-i_1}’, ‘e^{-(n1*k1+n2*k2)h}’,’h’,’mu’, ‘v_{1,n-1}’,’theta1’,’sigma_v1’, ‘v_{2,n-1}’,’theta2’,’sigma_v2’).

Return type:

Poly