---
title: "encodeWithOptimizer(_:to:)"
framework: createmlcomponents
role: symbol
role_heading: Instance Method
path: "createmlcomponents/numericimputer/encodewithoptimizer(_:to:)"
---

# encodeWithOptimizer(_:to:)

Encodes the transformer to an encoder.

## Declaration

```swift
func encodeWithOptimizer(_ transformer: NumericImputer<Element>.Transformer, to encoder: inout any EstimatorEncoder) throws
```

## Parameters

- `transformer`: A transformer this estimator creates.
- `encoder`: An encoder.