# shrinkage::MultivariateGaussian Shrinkage for Rust · 0.3.0 [Source]() ```rust pub struct MultivariateGaussian<'a> ``` Gaussian loss `||Y - predictor||_F² / (2 * nobs)`. Responses and predictors store each response column contiguously: entry `(observation, response)` has index `response * nobs + observation`. The loss sums over responses and averages over observations, so separable fits use the same penalty strengths as independent [`Gaussian`](<8f2aa89a892fb708e0e09c276910730b91ed3cb252a10cacd0a458cfbe59be13>) fits. Each response has its own optional unpenalized intercept, enabled by default. ## Inherent implementation [Source]() ```rust impl<'a> MultivariateGaussian<'a> ``` ### `fit_intercept` ```rust pub fn fit_intercept(self, enabled: bool) -> Self ``` [Source]() Enable or disable the free intercept for every response. Explicit feature centering can still induce original-scale intercepts. ### `fits_intercept` ```rust pub fn fits_intercept(&self) -> bool ``` [Source]() Whether fitting includes a free intercept for each response. ### `gradient` ```rust pub fn gradient( &self, predictor: &[f64], output: &mut [f64] ) -> Result<(), FitError> ``` [Source]() Write `(predictor - Y) / nobs` in response-major order. #### Errors Reject invalid dimensions, nonfinite entries, or nonfinite arithmetic. Output is unspecified after an error. ### `new` ```rust pub fn new(response: &'a [f64], nobs: usize, nresponses: usize) -> Self ``` [Source]() Borrow response-major observations with explicit dimensions. Dimensions and entries are checked during loss evaluation or fitting. ### `nobs` ```rust pub fn nobs(&self) -> usize ``` [Source]() Number of observations per response. ### `nresponses` ```rust pub fn nresponses(&self) -> usize ``` [Source]() Number of response columns. ### `response` ```rust pub fn response(&self) -> &[f64] ``` [Source]() Borrow response columns in response-major order. ## Implementation of Clone [Source]() ```rust impl<'a> Clone for MultivariateGaussian<'a> ``` ### `clone` ```rust fn clone(&self) -> Self ``` [Source]() ## Implementation of Copy [Source]() ```rust impl<'a> Copy for MultivariateGaussian<'a> ``` ## [Implementation of Datafit](<9d16367f3210bbbb9bf039290cf9c94f447e51d4ea33aea446a7f30e965d873a>) [Source]() ```rust impl Datafit for MultivariateGaussian<'_> ``` ### `Error` ```rust type Error = FitError; ``` [Source]() ### `value` ```rust fn value(&self, predictor: &[f64]) -> Result ``` [Source]() ## Implementation of Debug [Source]() ```rust impl<'a> Debug for MultivariateGaussian<'a> ``` ### `fmt` ```rust fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result ``` [Source]() ## [Implementation of NullModelDatafit](<12ebbf9584faa968bb3fcbf1175e4e131dd6c7466b719c62ad9d7628739d9dac>) [Source]() ```rust impl NullModelDatafit for shrinkage::MultivariateGaussian<'_> ``` ### `deviance` ```rust fn deviance(&self, predictor: &[f64]) -> Result, FitError> ``` [Source]() ### `null_intercepts` ```rust fn null_intercepts(&self) -> Result, FitError> ``` [Source]() ## Implementation of Freeze ```rust impl<'a> Freeze for MultivariateGaussian<'a> ``` ## Implementation of RefUnwindSafe ```rust impl<'a> RefUnwindSafe for MultivariateGaussian<'a> ``` ## Implementation of Send ```rust impl<'a> Send for MultivariateGaussian<'a> ``` ## Implementation of Sync ```rust impl<'a> Sync for MultivariateGaussian<'a> ``` ## Implementation of Unpin ```rust impl<'a> Unpin for MultivariateGaussian<'a> ``` ## Implementation of UnsafeUnpin ```rust impl<'a> UnsafeUnpin for MultivariateGaussian<'a> ``` ## Implementation of UnwindSafe ```rust impl<'a> UnwindSafe for MultivariateGaussian<'a> ``` ## 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 ```