README is added to the package.ssgraph() option save.all is changed to save.ssgraph(), option is.discrete is changed to not.cont.configure and configure.ac are removed and Makevars and Makevars.win are modified accordingly.is.discrete is added to function ssgraph().save.all is added to function ssgraph().method is added to function ssgraph() which is for both GGMs and GCGMs mehtods.plot.ssgraph(), summary.ssgraph(), and print.ssgraph() are added.Initial Release