Simple wrapper around proc.time.
measureTime(expr, prefix, envir = parent.frame())[expression]
Expression of which the time should be measured.
[character(1)]
Name of the corresponding feature set. Used as a prefix for the runtime.
[environment]
Environment in which expr should be evaluated.
Returns the value(s) of the evaluated expr and adds two
additional attributes: the number of function evaluations
costs_fun_evals and the runtime costs_runtime, which was
required for evaluating the expression.