# shrinkage::LinkedDatafit Shrinkage for Rust · 0.3.0 [Source]() ```rust pub struct LinkedDatafit ``` A response family composed with a link for Fisher-scoring IRLS. Construct with [`Gaussian::with_link`](<8f2aa89a892fb708e0e09c276910730b91ed3cb252a10cacd0a458cfbe59be13#method-with_link-0b074d9b24f8edeb8b9431d43d7a6c2cfec2566ddb64b80af9b07e0752705c0a>) or [`Binomial::with_link`](). Explicit IRLS paths require only [`Link`](); automatic paths additionally require [`ConvexLink`](<45ae855dae253e1bbc77e093683e36c85f95b348ea7c924f536c479638434084>). Exact Hessians require [`TwiceDifferentiableLink`](). The original family constructors retain their specialized solver capabilities. Automatic paths require convexity of the particular family-link pairing: ```rust use shrinkage::{Gaussian, Logit, NullModelDatafit}; fn automatic(_: D) {} automatic(Gaussian::new(&[0.2, 0.8]).with_link(Logit)); ``` A composed link does not acquire proximal solver capabilities implicitly: ```rust use shrinkage::{Binomial, Probit, SmoothDatafit}; fn proximal(_: D) {} proximal(Binomial::new(&[0.0, 1.0]).with_link(Probit)); ``` ## Inherent implementation [Source]() ```rust impl<'a, L: Link> LinkedDatafit, L> ``` ### `fit_intercept` ```rust pub fn fit_intercept(self, enabled: bool) -> Self ``` [Source]() Enable or disable the free, unpenalized intercept. ### `fits_intercept` ```rust pub fn fits_intercept(&self) -> bool ``` [Source]() Whether fitting includes an unpenalized intercept. ### `response` ```rust pub fn response(&self) -> &[f64] ``` [Source]() Borrow the observed responses. ## Inherent implementation [Source]() ```rust impl<'a, L: Link> LinkedDatafit, L> ``` ### `fit_intercept` ```rust pub fn fit_intercept(self, enabled: bool) -> Self ``` [Source]() Enable or disable the free, unpenalized intercept. ### `fits_intercept` ```rust pub fn fits_intercept(&self) -> bool ``` [Source]() Whether fitting includes an unpenalized intercept. ### `response` ```rust pub fn response(&self) -> &[f64] ``` [Source]() Borrow the observed responses. ## Inherent implementation [Source]() ```rust impl LinkedDatafit ``` ### `inverse_link` ```rust pub fn inverse_link(&self, eta: f64) -> Result ``` [Source]() Transform a predictor to a response mean using the selected link. #### Errors Reject invalid predictors, link configuration, or arithmetic. ### `link` ```rust pub fn link(&self, mu: f64) -> Result ``` [Source]() Transform a mean to a predictor using the selected link. #### Errors Reject invalid means, link configuration, or arithmetic. ## Inherent implementation [Source]() ```rust impl LinkedDatafit ``` ### `link_function` ```rust pub fn link_function(&self) -> &L ``` [Source]() Borrow the configured link. ### `with_link` ```rust pub fn with_link(self, link: T) -> LinkedDatafit ``` [Source]() Replace the link, preserving the response and intercept setting. ## Inherent implementation [Source]() ```rust impl LinkedDatafit, L> ``` ## Implementation of Clone [Source]() ```rust impl Clone for LinkedDatafit ``` ### `clone` ```rust fn clone(&self) -> Self ``` [Source]() ## Implementation of Copy [Source]() ```rust impl Copy for LinkedDatafit ``` ## [Implementation of Datafit](<9d16367f3210bbbb9bf039290cf9c94f447e51d4ea33aea446a7f30e965d873a>) [Source]() ```rust impl Datafit for LinkedDatafit, L> ``` ### `Error` ```rust type Error = FitError; ``` [Source]() ### `value` ```rust fn value(&self, eta: &[f64]) -> Result ``` [Source]() ## [Implementation of Datafit](<9d16367f3210bbbb9bf039290cf9c94f447e51d4ea33aea446a7f30e965d873a>) [Source]() ```rust impl Datafit for LinkedDatafit, L> ``` ### `Error` ```rust type Error = FitError; ``` [Source]() ### `value` ```rust fn value(&self, eta: &[f64]) -> Result ``` [Source]() ## Implementation of Debug [Source]() ```rust impl Debug for LinkedDatafit ``` ### `fmt` ```rust fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result ``` [Source]() ## [Implementation of DiagonalHessianDatafit](<0c7a483f4e622180bfcc5efab524b3377e2104e91e0d263eb5a204d4a4ab722e>) [Source]() ```rust impl DiagonalHessianDatafit for LinkedDatafit, L> ``` ### `hessian_diagonal` ```rust fn hessian_diagonal(&self, eta: &[f64], out: &mut [f64]) -> Result<(), FitError> ``` [Source]() ## [Implementation of DiagonalHessianDatafit](<0c7a483f4e622180bfcc5efab524b3377e2104e91e0d263eb5a204d4a4ab722e>) [Source]() ```rust impl DiagonalHessianDatafit for LinkedDatafit, L> ``` ### `hessian_diagonal` ```rust fn hessian_diagonal(&self, eta: &[f64], out: &mut [f64]) -> Result<(), FitError> ``` [Source]() ## [Implementation of DifferentiableDatafit](<52561c3cc593c87f940a70abf79b463b0c969e6ea2f86d60ef4f213626b07d4b>) [Source]() ```rust impl DifferentiableDatafit for LinkedDatafit, L> ``` ### `fits_intercept` ```rust fn fits_intercept(&self) -> bool ``` [Source]() ### `gradient` ```rust fn gradient(&self, eta: &[f64], out: &mut [f64]) -> Result<(), FitError> ``` [Source]() ### `n_obs` ```rust fn n_obs(&self) -> usize ``` [Source]() ## [Implementation of DifferentiableDatafit](<52561c3cc593c87f940a70abf79b463b0c969e6ea2f86d60ef4f213626b07d4b>) [Source]() ```rust impl DifferentiableDatafit for LinkedDatafit, L> ``` ### `fits_intercept` ```rust fn fits_intercept(&self) -> bool ``` [Source]() ### `gradient` ```rust fn gradient(&self, eta: &[f64], out: &mut [f64]) -> Result<(), FitError> ``` [Source]() ### `n_obs` ```rust fn n_obs(&self) -> usize ``` [Source]() ## [Implementation of NullModelDatafit](<12ebbf9584faa968bb3fcbf1175e4e131dd6c7466b719c62ad9d7628739d9dac>) [Source]() ```rust impl<'a, L: ConvexLink>> NullModelDatafit for LinkedDatafit, L> ``` ### `deviance` ```rust fn deviance(&self, eta: &[f64]) -> Result, FitError> ``` [Source]() ### `null_intercepts` ```rust fn null_intercepts(&self) -> Result, FitError> ``` [Source]() ## [Implementation of NullModelDatafit](<12ebbf9584faa968bb3fcbf1175e4e131dd6c7466b719c62ad9d7628739d9dac>) [Source]() ```rust impl<'a, L: ConvexLink>> NullModelDatafit for LinkedDatafit, L> ``` ### `deviance` ```rust fn deviance(&self, eta: &[f64]) -> Result, FitError> ``` [Source]() ### `null_intercepts` ```rust fn null_intercepts(&self) -> Result, FitError> ``` [Source]() ## [Implementation of QuadraticModelDatafit](<31d7fcbcbb4b2013239104910cbd830452b304788def6134cdeee718040312eb>) [Source]() ```rust impl QuadraticModelDatafit for LinkedDatafit, L> ``` ### `initial_intercept` ```rust fn initial_intercept(&self) -> Result ``` [Source]() ### `valid_predictor` ```rust fn valid_predictor(&self, eta: &[f64]) -> bool ``` [Source]() ### `working_curvature` ```rust fn working_curvature( &self, eta: &[f64], out: &mut [f64] ) -> Result<(), FitError> ``` [Source]() ## [Implementation of QuadraticModelDatafit](<31d7fcbcbb4b2013239104910cbd830452b304788def6134cdeee718040312eb>) [Source]() ```rust impl QuadraticModelDatafit for LinkedDatafit, L> ``` ### `initial_intercept` ```rust fn initial_intercept(&self) -> Result ``` [Source]() ### `valid_predictor` ```rust fn valid_predictor(&self, eta: &[f64]) -> bool ``` [Source]() ### `working_curvature` ```rust fn working_curvature( &self, eta: &[f64], out: &mut [f64] ) -> Result<(), FitError> ``` [Source]() ## Implementation of Freeze ```rust impl Freeze for LinkedDatafit where F: Freeze, L: Freeze ``` ## Implementation of RefUnwindSafe ```rust impl RefUnwindSafe for LinkedDatafit where F: RefUnwindSafe, L: RefUnwindSafe ``` ## Implementation of Send ```rust impl Send for LinkedDatafit where F: Send, L: Send ``` ## Implementation of Sync ```rust impl Sync for LinkedDatafit where F: Sync, L: Sync ``` ## Implementation of Unpin ```rust impl Unpin for LinkedDatafit where F: Unpin, L: Unpin ``` ## Implementation of UnsafeUnpin ```rust impl UnsafeUnpin for LinkedDatafit where F: UnsafeUnpin, L: UnsafeUnpin ``` ## Implementation of UnwindSafe ```rust impl UnwindSafe for LinkedDatafit where F: UnwindSafe, L: UnwindSafe ``` ## Implementation of Any ```rust impl Any for T where T: 'static + ?Sized ``` ## Implementation of Borrow ```rust impl Borrow for T where T: ?Sized ``` ## Implementation of BorrowMut ```rust impl BorrowMut for T where T: ?Sized ``` ## Implementation of ByRef ```rust impl ByRef for T ``` ## Implementation of CastableFrom ```rust impl CastableFrom for DT where ST: ?Sized, DT: ?Sized ``` ## Implementation of CastableFrom ```rust impl CastableFrom for DT where ST: ?Sized, DT: ?Sized ``` ## Implementation of CloneToUninit ```rust impl CloneToUninit for T where T: Clone ``` ## Implementation of From ```rust impl From for T ``` ## Implementation of Imply ```rust impl Imply for U where T: ?Sized, U: ?Sized ``` ## Implementation of Into ```rust impl Into for T where U: From ``` ## Implementation of IntoEither ```rust impl IntoEither for T ``` ## Implementation of Pointable ```rust impl Pointable for T ``` ## Implementation of Read ```rust impl Read for T where T: ?Sized ``` ## Implementation of Same ```rust impl Same for T ``` ## Implementation of SupersetOf ```rust impl SupersetOf for SP where SS: SubsetOf ``` ## Implementation of ToOwned ```rust impl ToOwned for T where T: Clone ``` ## Implementation of TryFrom ```rust impl TryFrom for T where U: Into ``` ## Implementation of TryInto ```rust impl TryInto for T where U: TryFrom ```