digests

package
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 Go to latest Published: Dec 9, 2025 License: Apache-2.0 Imports: 4 Imported by: 0

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type DigestMap 

type DigestMap struct {
	// contains filtered or unexported fields
}

DigestMap is a thread-safe map for storing t-digests keyed by string identifiers. It's designed for concurrent access patterns where multiple goroutines may read and write digest statistics simultaneously.

func NewDigestMap 

func NewDigestMap() *DigestMap

NewDigestMap creates a new DigestMap instance.

func (*DigestMap) Add 

func (dm *DigestMap) Add(key string, value float64)

Add adds a value to the digest for the given key. If the key doesn't exist, a new digest is created.

func (*DigestMap) CDF 

func (dm *DigestMap) CDF(key string, value float64) (float64, bool)

CDF returns the cumulative distribution function value at the given value for the key. Returns the CDF value and true if the key exists, 0 and false otherwise.

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