HybridLimitFactorPrescription#

class langchain_astradb.vectorstores.HybridLimitFactorPrescription(vector: float, lexical: float)[source]#

A per-subsearch setting for the hybrid-search ‘limit’ factors.

This structure is to be used to set different values for the vector and the lexical portions of the hybrid search.

Each of the attributes is a floating-point number, representing the multiplicative factor applied to a search final ‘k’ to calculate the “limit” value for the associated sub-search. For instance, if vector=1.5 and lexical=3.0, a hybrid search called by asking a final set of k=4 results will be executed with limits of 6 for vector and 12 for lexical. (The results are approximated to an integer.)

Parameters:

• vector (float)

• lexical (float)

vector#

the multiplicative factor for the “vector” part of the hybrid search.

Type:

float

lexical#

the multiplicative factor for the “lexical” part of the hybrid search.

Type:

float

Create new instance of HybridLimitFactorPrescription(vector, lexical)

Attributes

lexical	Alias for field number 1
vector	Alias for field number 0

Methods

count(value, /)	Return number of occurrences of value.
index(value[, start, stop])	Return first index of value.

count(value, /)#

Return number of occurrences of value.

index(value, start=0, stop=9223372036854775807, /)#

Return first index of value.

Raises ValueError if the value is not present.