4/11/2023 0 Comments Count run time rThe `-` operation, in particular, is defined to use difftime() when used with a POSIXct. Taking the difference of two POSIXcts give an object of class difftime, which has a "units" attribute. Specifically, Sys.time() returns a POSIXct object. However, since the unit can vary (from "secs" to "mins" to "days"), it is less useful, say, to compare multiple runtimes on equal footing with this method if their units differ.įor non-interactive purposes, it is preferred to specify the unit of time. This prints the result in human-readable format, such as "time difference of 2 secs". Several answers mention taking the difference of two Sys.time()s, ie. #> expression min median `itr/sec` mem_alloc `gc/sec`Ĭreated on by the reprex package (v2.0.1) There is also full support for plotting with ggplot2 including custom scales and formatting. The times and memory usage are returned as custom objects which have human readable formatting for display (e.g. This allows you to isolate the performance and effects of garbage collection on running time (for more details see Neal 2014).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |