hll

package module

v0.1.1 Latest Latest Go to latest Published: Aug 25, 2022 License: MIT Imports: 4 Imported by: 0

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Package hll provides the analysis of a near-optimal cardinality estimation algorithm.

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

Counter represents a HyperLogLog counter.

func New(stderr float64) *Counter

New creates a new HyperLogLog counter.

func (a *Counter) CountBytes(v []byte)

CountBytes counts the bytes type key.

func (a *Counter) CountString(v string)

CountString counts the string type key.

func (a *Counter) CountUint(v uint64)

CountUint counts the uint64 type key.

func (a *Counter) Result() float64

Result returns the estimation result.

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

Group represents a group of counters.

func NewGroup(stderr float64) *Group

NewGroup creates a new group of counters.

func (a *Group) New() *Counter

New creates a new counter.

func (a *Group) Result() float64

Result returns the estimation result.