> ## Documentation Index
> Fetch the complete documentation index at: https://wb-21fd5541-sdk-testing-latest.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# MetricChangeFilter

export const GitHubLink = ({url}) => <a href={url} target="_blank" rel="noopener noreferrer" className="github-source-link">
    <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor" xmlns="http://www.w3.org/2000/svg">
      <path d="M12 0C5.37 0 0 5.37 0 12c0 5.31 3.435 9.795 8.205 11.385.6.105.825-.255.825-.57 0-.285-.015-1.23-.015-2.235-3.015.555-3.795-.735-4.035-1.41-.135-.345-.72-1.41-1.23-1.695-.42-.225-1.02-.78-.015-.795.945-.015 1.62.87 1.845 1.23 1.08 1.815 2.805 1.305 3.495.99.105-.78.42-1.305.765-1.605-2.67-.3-5.46-1.335-5.46-5.925 0-1.305.465-2.385 1.23-3.225-.12-.3-.54-1.53.12-3.18 0 0 1.005-.315 3.3 1.23.96-.27 1.98-.405 3-.405s2.04.135 3 .405c2.295-1.56 3.3-1.23 3.3-1.23.66 1.65.24 2.88.12 3.18.765.84 1.23 1.905 1.23 3.225 0 4.605-2.805 5.625-5.475 5.925.435.375.81 1.095.81 2.22 0 1.605-.015 2.895-.015 3.3 0 .315.225.69.825.57A12.02 12.02 0 0024 12c0-6.63-5.37-12-12-12z" />
    </svg>
    GitHub source
  </a>;

<GitHubLink url="https://github.com/wandb/wandb/blob/main/wandb/automations/_filters/run_metrics.py#L153" />

## <kbd>class</kbd> MetricChangeFilter

```python theme={null}
*,
name: str,
agg_op: wandb.automations._filters.run_metrics.Agg | None = None,
current_window_size: typing.Annotated[int, Gt(gt=0)] = 1,
cmp: NoneType = None,
change_amount: Union[Annotated[int, Gt(gt=0)], Annotated[float, Gt(gt=0)]],
prior_window_size: typing.Annotated[int, Gt(gt=0)] = <factory>,
change_type: wandb.automations._filters.run_metrics.ChangeType,
change_dir: wandb.automations._filters.run_metrics.ChangeDir
```

## Description

Filter that compares a **change** in a metric value to a user-defined threshold.

The change is calculated over "tumbling" windows, i.e. the difference
between the current window and the non-overlapping prior window.

## Args

* `name`:
* `agg_op`:
* `current_window_size`:
* `cmp`: Ignored.
* `change_amount`:
* `prior_window_size`: Size of the "prior" metric aggregation window (ignored if `agg` is `None`).

If omitted, defaults to the size of the current window.

* `change_type`:
* `change_dir`: