---
title: PreprocessingEstimator.Input
framework: createmlcomponents
role: symbol
role_heading: Type Alias
path: createmlcomponents/preprocessingestimator/input
---

# PreprocessingEstimator.Input

The input type.

## Declaration

```swift
typealias Input = Preprocessor.Input
```

## See Also

### Preprocesing and fitting

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