---
title: PreprocessingTabularEstimator
framework: createmlcomponents
role: symbol
role_heading: Structure
path: createmlcomponents/preprocessingtabularestimator
---

# PreprocessingTabularEstimator

An estimator that composes a preprocessing transformer and an estimator.

## Declaration

```swift
struct PreprocessingTabularEstimator<Preprocessor, Estimator> where Preprocessor : TabularTransformer, Estimator : TabularEstimator
```

## Topics

### Creating an estimator

- [init(_:_:)](createmlcomponents/preprocessingtabularestimator/init(_:_:).md)

### Getting the properties

- [estimator](createmlcomponents/preprocessingtabularestimator/estimator.md)
- [preprocessor](createmlcomponents/preprocessingtabularestimator/preprocessor.md)

### Preprocesing and fitting

- [preprocessed(from:eventHandler:)](createmlcomponents/preprocessingtabularestimator/preprocessed(from:eventhandler:).md)
- [fitted(to:eventHandler:)](createmlcomponents/preprocessingtabularestimator/fitted(to:eventhandler:).md)
- [fitted(toPreprocessed:eventHandler:)](createmlcomponents/preprocessingtabularestimator/fitted(topreprocessed:eventhandler:).md)
- [PreprocessingTabularEstimator.Input](createmlcomponents/preprocessingtabularestimator/input.md)
- [PreprocessingTabularEstimator.Intermediate](createmlcomponents/preprocessingtabularestimator/intermediate.md)
- [PreprocessingTabularEstimator.Output](createmlcomponents/preprocessingtabularestimator/output.md)
- [Transformer](createmlcomponents/transformer.md)

## Relationships

### Conforms To

- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [TabularEstimator](createmlcomponents/tabularestimator.md)

## See Also

### Tabular components

- [TabularTransformer](createmlcomponents/tabulartransformer.md)
- [TabularEstimator](createmlcomponents/tabularestimator.md)
- [SupervisedTabularEstimator](createmlcomponents/supervisedtabularestimator.md)
- [ColumnSelector](createmlcomponents/columnselector.md)
- [ColumnSelectorTransformer](createmlcomponents/columnselectortransformer.md)
- [ColumnSelection](createmlcomponents/columnselection.md)
- [ColumnConcatenator](createmlcomponents/columnconcatenator.md)
- [PreprocessingSupervisedTabularEstimator](createmlcomponents/preprocessingsupervisedtabularestimator.md)
- [PreprocessingUpdatableSupervisedTabularEstimator](createmlcomponents/preprocessingupdatablesupervisedtabularestimator.md)
- [PreprocessingUpdatableTabularEstimator](createmlcomponents/preprocessingupdatabletabularestimator.md)