---
title: TransformerToEstimatorAdaptor
framework: createmlcomponents
role: symbol
role_heading: Structure
path: createmlcomponents/transformertoestimatoradaptor
---

# TransformerToEstimatorAdaptor

An estimator that always returns a predefined transformer.

## Declaration

```swift
struct TransformerToEstimatorAdaptor<Transformer> where Transformer : Transformer
```

## Topics

### Creating a feature

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

### Getting the transformer

- [transformer](createmlcomponents/transformertoestimatoradaptor/transformer.md)

### Encoding and Decoding

- [encode(_:to:)](createmlcomponents/transformertoestimatoradaptor/encode(_:to:).md)
- [decode(from:)](createmlcomponents/transformertoestimatoradaptor/decode(from:).md)

### Fitting

- [fitted(to:eventHandler:)](createmlcomponents/transformertoestimatoradaptor/fitted(to:eventhandler:).md)

## Relationships

### Conforms To

- [Estimator](createmlcomponents/estimator.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Transformer adaptors

- [TransformerToTemporalAdaptor](createmlcomponents/transformertotemporaladaptor.md)
- [TransformerToUpdatableEstimatorAdaptor](createmlcomponents/transformertoupdatableestimatoradaptor.md)