IdentityLinkSpec#

class pymc_marketing.mmm.link.IdentityLinkSpec[source]#

Identity link: E[y] = mu * target_scale.

Methods

`IdentityLinkSpec.__init__`(args, *kwargs)
`IdentityLinkSpec.create_media_contribution_deterministic`(...)	Register additive `total_media_contribution_original_scale`.
`IdentityLinkSpec.create_total_response_deterministic`(...)	Register `total_response_original_scale`.
`IdentityLinkSpec.default_intercept`(dims)	Return `Normal(0, 2)` intercept prior.
`IdentityLinkSpec.default_likelihood`(dims)	Return `Normal` likelihood prior.
`IdentityLinkSpec.inverse_link`(mu)	Return mu unchanged (identity transform).
`IdentityLinkSpec.mean_correction`(posterior)	Refuse: the identity-link correction needs the likelihood.
`IdentityLinkSpec.mean_scale_factor`(...[, ...])	Return the mean correction as a multiplicative factor.
`IdentityLinkSpec.original_scale_transform`(...)	Return `variable * target_scale`.
`IdentityLinkSpec.to_mean_scale`(dataset, ...)	Apply the identity-link mean correction, which depends on likelihood.
`IdentityLinkSpec.validate_likelihood_compatibility`(...)	Raise if likelihood is incompatible with link.
`IdentityLinkSpec.validate_likelihood_support`(...)	Raise if observed falls outside the support of likelihood.
`IdentityLinkSpec.validate_target`(y)	No-op: identity link accepts any target values.

Attributes