Regression Analysis and Classification (PetscRegressor)

The Regression Analysis and Classification (PetscRegressor) component provides a simple interface for supervised statistical (or machine) learning regression (prediction of continuous numerical values, including least squares with PETSCREGRESSORLINEAR) or classification (prediction of discrete labels or categories) tasks.

PetscRegressor internally employs Tao (or KSP for a few, specialized cases) to solve the underlying numerical optimization problems. PetscRegressor users can set Tao options or otherwise directly manipulate the underlying Tao context, which can be accessed via PetscRegressorGetTao(). User guide chapter: PetscRegressor: Regression Solvers.

Beginner - Basic usage

PETSCREGRESSORLINEAR PetscRegressor PetscRegressorCreate PetscRegressorDestroy PetscRegressorFit

PetscRegressorGetTao PetscRegressorLinearGetCoefficients PetscRegressorLinearGetIntercept PetscRegressorLinearGetKSP PetscRegressorPredict

PetscRegressorSetFromOptions PetscRegressorSetRegularizerWeight PetscRegressorType PetscRegressorView

Intermediate - Setting options for algorithms and data structures

PetscRegressorGetType PetscRegressorLinearSetFitIntercept PetscRegressorLinearSetType

PetscRegressorLinearSetUseKSP PetscRegressorReset

PetscRegressorSetType PetscRegressorViewFromOptions

Advanced - Setting more advanced options and customization

PetscRegressorAppendOptionsPrefix PetscRegressorGetOptionsPrefix PetscRegressorLinearGetType

PetscRegressorLinearType PetscRegressorRegister

PetscRegressorSetOptionsPrefix PetscRegressorSetUp

Developer - Interfaces rarely needed by applications programmers

PetscRegressorFinalizePackage

PetscRegressorInitializePackage

Single list of manual pages

PETSCREGRESSORLINEAR PetscRegressor PetscRegressorAppendOptionsPrefix PetscRegressorCreate PetscRegressorDestroy PetscRegressorFinalizePackage PetscRegressorFit PetscRegressorGetOptionsPrefix PetscRegressorGetTao PetscRegressorGetType

PetscRegressorInitializePackage PetscRegressorLinearGetCoefficients PetscRegressorLinearGetIntercept PetscRegressorLinearGetKSP PetscRegressorLinearGetType PetscRegressorLinearSetFitIntercept PetscRegressorLinearSetType PetscRegressorLinearSetUseKSP PetscRegressorLinearType PetscRegressorPredict

PetscRegressorRegister PetscRegressorReset PetscRegressorSetFromOptions PetscRegressorSetOptionsPrefix PetscRegressorSetRegularizerWeight PetscRegressorSetType PetscRegressorSetUp PetscRegressorType PetscRegressorView PetscRegressorViewFromOptions