timePrompt: Time profiling.
In traversc/trqwe: Performance oriented statistical metrics and utility functions.

Reports time in seconds to the R prompt of the previous command. This function adds a callback which saves the running of individual commands and reports the time in seconds on the next line.

1	timePrompt()

> timePrompt()
0.000s> x <- sample(1:10, size=1e8, replace=T)
1.240s> 
Note - this time is not accurate if child processes or multithreading is involved.