GEEResults.cov_params()

statsmodels.genmod.generalized_estimating_equations.GEEResults.cov_params

GEEResults.cov_params(r_matrix=None, column=None, scale=None, cov_p=None, other=None)

Returns the variance/covariance matrix.

The variance/covariance matrix can be of a linear contrast of the estimates of params or all params multiplied by scale which will usually be an estimate of sigma^2. Scale is assumed to be a scalar.

Parameters:

r_matrix : array-like

Can be 1d, or 2d. Can be used alone or with other.

column : array-like, opti