---
title: "ClikaRT::nn::HuberLoss"
sidebar_label: "HuberLoss"
description: "Half the squared error below delta, a linear penalty above it, between input and target."
---

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**Header:** `ClikaRT/nn/generated/loss.h`  
**Inherits:** [`ClikaRT::nn::Module`](./Module.md)

Half the squared error below `delta`, a linear penalty above it, between `input` and `target`. The module form of [`ClikaRT::ops::huber_loss`](../ops/huber_loss.md#huber_loss), which documents the full contract (shapes, dtypes, errors); construct once, then call it like a function.

## Member functions

### HuberLoss() {#HuberLoss}

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`explicit` **`HuberLoss`**([`HuberLossOptions`](./HuberLossOptions.md) `options` `=` `{}`)

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Constructs the module from [`options`](./HuberLoss.md#options) (every default when omitted).

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Declared in `ClikaRT/nn/generated/loss.h`, line 212

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### forward() {#forward}

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[`Tensor`](../Tensor.md) **`forward`**([`Tensor`](../Tensor.md) `input`, [`Tensor`](../Tensor.md) `target`) `const`

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[`forward_impl`](./HuberLoss.md#forward), unwrapped: raises [`ClikaRT::Error`](../Error.md) on failure.

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Declared in `ClikaRT/nn/generated/loss.h`, line 225

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### operator()() {#operator-call}

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[`Tensor`](../Tensor.md) **`operator()`**([`Tensor`](../Tensor.md) `input`, [`Tensor`](../Tensor.md) `target`) `const`

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Same as [`forward`](./HuberLoss.md#forward).

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Declared in `ClikaRT/nn/generated/loss.h`, line 229

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### options() {#options}

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`const` [`HuberLossOptions`](./HuberLossOptions.md)`&` **`options`**() `const`

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The settings this module was constructed with.

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Declared in `ClikaRT/nn/generated/loss.h`, line 233

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