# skopt.benchmarks.bench5¶

skopt.benchmarks.bench5(x)[source][source]

A benchmark function for test purposes.

f(x) = float(x[0]) ** 2 + x[1] ** 2

where x is a string. It has a single minima with f(x) = 0 at x[0] = “0” and x[1] = “0” This benchmark is used for checking support of mixed spaces.