Return a function which counts its function evaluations.

This is a counting wrapper for a smoof_function, i.e., the returned function first checks whether the given argument is a vector or matrix, saves the number of function evaluations of the wrapped function to compute the function values and finally passes down the argument to the wrapped smoof_function.

addCountingWrapper(fn)

Arguments

fn

[smoof_function]
Smoof function which should be wrapped.

Value

[smoof_counting_function]

See also

getNumberOfEvaluations, resetEvaluationCounter

Examples

fn = makeBBOBFunction(dimensions = 2L, fid = 1L, iid = 1L)
fn = addCountingWrapper(fn)

# we get a value of 0 since the function has not been called yet
print(getNumberOfEvaluations(fn))
#> [1] 0

# now call the function 10 times consecutively
for (i in seq(10L)) {
  fn(runif(2))
}
print(getNumberOfEvaluations(fn))
#> [1] 10

# Here we pass a (2x5) matrix to the function with each column representing
# one input vector
x = matrix(runif(10), ncol = 5L)
fn(x)
#> [1] 83.39921 81.58337 82.58760 82.08580 81.02571
print(getNumberOfEvaluations(fn))
#> [1] 15