Hi group, My case has N physicians with each seeing M patients. One physician could have seen a group of patients, or, a patient could have been seen by multiple number of physicians. In order words, there are overlaps. Now, I have the following NxM matrix
Patient#1 Patient#2 Patient#3 ....... Patient#m Physician#1 1 0 1 ....... 0 Physician#2 1 1 1 ....... 1 Physician#3 0 1 0 ....... 1 . . . . ....... . . . . . ....... . Physician#n 1 1 0 ....... 0 "1" indicates previous encouter and "0" otherwise. My aim is to identify physician group practice based on the common patients they see. Any suggestion on which R package would best serve this purpose? Thank you so much! Regards, Kelvin ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html