This is a forum for asking questions and getting answers about the OS X app "GCM." It is a place to report bugs. Feature requests are also entertained. Please note the app is freeware; Brad Marston, will respond at his discretion. Please be polite.
Gentle introductions to direct statistical simulation can be found
here and
here.
GCM is provided "as is." The author is under no obligation to provide support. Brown University and M3 Research assume no responsibility for its proper use.