# Deficit Frequency Node Recorder

## General Description

Recorder to return the frequency of timesteps with a failure to meet max\_flow.[ ](https://pywr.github.io/pywr-docs/master/api/generated/pywr.recorders.NumpyArrayNodeCurtailmentRatioRecorder.html)[API Reference](https://pywr.github.io/pywr-docs/master/api/generated/pywr.recorders.DeficitFrequencyNodeRecorder.html)

## Attributes

<table><thead><tr><th width="155">Name</th><th width="395">Description</th><th>Required</th></tr></thead><tbody><tr><td>model</td><td></td><td></td></tr><tr><td>node</td><td>Node instance to record</td><td>Optional</td></tr><tr><td>comment</td><td>comment</td><td>Optional</td></tr></tbody></table>

## Example

coming soon...

```json
{

}
```