# TraceHeadSamplingRule

Deprecated. Head sampling rule evaluated per trace. Use traceHeadSamplingRate on TraceReducer instead.

**Type**: `object`

## Properties

- name: filter (optional)
  type: `HeadSamplingFilter`

- name: rate (required)
  type: number
  description: Fraction of matching spans/traces to retain, in [0.0, 1.0].