Q module

Classes for constructing the variance-covariance matrix for AKM and its bias corrections.

class pytwoway.Q.Q.CovCovariate(cov_names_1, cov_names_2)

Bases: object

Generate Q to estimate cov(covariate 1, covariate 2).

Parameters

• cov_names_1 (str or list of str) – covariate name or list of covariate names to sum for first term in covariance

• cov_names_2 (str or list of str) – covariate name or list of covariate names to sum for second term in covariance

name()

Return string representation of covariance to be estimated.

Returns

string representation of covariance to be estimated

Return type

(str)

class pytwoway.Q.Q.CovPsiAlpha

Bases: object

Generate Q to estimate cov(psi, alpha).

name()

Return string representation of cov(psi, alpha).

Returns

string representation of cov(psi, alpha)

Return type

(str)

class pytwoway.Q.Q.CovPsiPrevPsiNext

Bases: object

Generate Q to estimate cov(psi_t, psi_{t+1}).

name()

Return string representation of cov(psi_t, psi_{t+1}).

Returns

string representation of cov(psi_t, psi_{t+1})

Return type

(str)

class pytwoway.Q.Q.VarAlpha

Bases: object

Generate Q to estimate var(alpha).

name()

Return string representation of var(alpha).

Returns

string representation of var(alpha)

Return type

(str)

class pytwoway.Q.Q.VarCovariate(cov_names)

Bases: object

Generate Q to estimate var(covariate) or var(sum(covariates)) if multiple covariates are listed.

Parameters

cov_names (str or list of str) – covariate name or list of covariate names to sum

name()

Return string representation of variance to be estimated.

Returns

string representation of variance to be estimated

Return type

(str)

class pytwoway.Q.Q.VarPsi

Bases: object

Generate Q to estimate var(psi).

name()

Return string representation of var(psi).

Returns

string representation of var(psi)

Return type

(str)

class pytwoway.Q.Q.VarPsiPlusAlpha

Bases: object

Generate Q to estimate var(psi + alpha).

name()

Return string representation of var(psi + alpha).

Returns

string representation of var(psi + alpha)

Return type

(str)