3.5.2.2.3. statsmodels.genmod.cov_struct.Exchangeable¶
-
class
statsmodels.genmod.cov_struct.
Exchangeable
[source]¶ An exchangeable working dependence structure.
3.5.2.2.3.1. Methods¶
__init__ () |
|
covariance_matrix (expval, index) |
Returns the working covariance or correlation matrix for a given cluster of data. |
covariance_matrix_solve (expval, index, ...) |
Solves matrix equations of the form covmat * soln = rhs and returns the values of soln, where covmat is the covariance matrix represented by this class. |
initialize (model) |
Called by GEE, used by implementations that need additional setup prior to running fit. |
summary () |
|
update (params) |
Updates the association parameter values based on the current regression coefficients. |