> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/emotivbci/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/emotivbci/performance-metrics.md).

# Performance Metrics

**In this section:**

* [Overview](/emotivbci/performance-metrics/overview.md)
* [Definitions](/emotivbci/performance-metrics/definitions.md)
* [Frequency rate](/emotivbci/performance-metrics/frequency-rate.md)
* [Turn streams on/off](/emotivbci/performance-metrics/turn-streams-onoff.md)
* [Toggle all streams on/off](/emotivbci/performance-metrics/toggle-all-streams-onoff.md)