All of the functions in How to create a progress bar?, the
ProgressIndicator built-in and Monitoring lengthy computations estimate the completion time for implementation of operations that are indexed.
Is there a way to estimate the completion time for implementation of built-in functions in Mathematica? For instance, to estimate the time remaining for the function
Counts[string]isn't valid - I presume you mean something like
CharacterCounts["abcaa"]. There is no interface to EvaluationMonitor so I don't think it's possible. $\endgroup$
Countonly deals with a part of the list. That way you'll know that you've processed, say, five out of ten parts. $\endgroup$