StringDistanceEvalChain

Compute string distances between the prediction and the reference.

Examples:

from langchain_classic.evaluation import StringDistanceEvalChain evaluator = StringDistanceEvalChain() evaluator.evaluate_strings( prediction="Mindy is the CTO", reference="Mindy is the CEO", )

Using the load_evaluator function:

from langchain_classic.evaluation import load_evaluator evaluator = load_evaluator("string_distance") evaluator.evaluate_strings( prediction="The answer is three", reference="three", )