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# Module accumulator

> Streaming statistics accumulator using Welford's algorithm and TDigest.

Generated from `cargo doc --no-deps -p nemo-relay -p nemo-relay-adaptive -p nemo-relay-pii-redaction -p nemo-relay-ffi -p nemo-relay-types -p nemo-relay-plugin -p nemo-relay-worker-proto -p nemo-relay-worker`.

Streaming statistics accumulator using Welford's algorithm and TDigest.

## Structs

* [AccumulatorState](/reference/api/rust-library-reference/nemo-relay-adaptive/trie/accumulator/struct-accumulatorstate): Maps trie path strings to their node accumulators.
* [NodeAccumulators](/reference/api/rust-library-reference/nemo-relay-adaptive/trie/accumulator/struct-nodeaccumulators): Per-node accumulators for all metric types, keyed by call index.
* [RunningStats](/reference/api/rust-library-reference/nemo-relay-adaptive/trie/accumulator/struct-runningstats): Streaming statistics tracker combining Welford's online algorithm for mean/variance with a TDigest for streaming percentile estimation.

> Streaming statistics accumulator using Welford's algorithm and TDigest.

## Docs

- [Struct Accumulator State](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-adaptive/trie/accumulator/struct-accumulatorstate.md): Maps trie path strings to their node accumulators.
- [Struct Node Accumulators](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-adaptive/trie/accumulator/struct-nodeaccumulators.md): Per-node accumulators for all metric types, keyed by call index.
- [Struct Running Stats](https://docs.nvidia.com/nemo/relay/v0.8.4/reference/api/rust-library-reference/nemo-relay-adaptive/trie/accumulator/struct-runningstats.md): Streaming statistics tracker combining Welford's online algorithm for mean/variance with a TDigest for streaming percentile estimation.