An edge is a link between two people or entities in a network that can be
directed or undirected. A directed edge has a clear origin and destination: lender > borrower, tweeter > follower. An undirected edge connects two people or entities with a mutual relationship: Facebook friends, teams in a sports league.
"I really enjoyed this course and like the instructor. The discussion board provides a valuable venue to discuss questions and clarify doubts. The instructor's feedback is prompt and helpful. I not only got my questions answered but also learned a lot from other's questions."
R. Yang, Purdue University
"Good value for the money. Thank you very much for a thought- provoking course"
J. Politch, Harvard
"This is my fourth course that I have taken at statistics.com and I am very satisfied with the level and quality of instruction. I will continue to look for ...courses that I can take whenever possible."
H. Chavarria, Kinetic Corp
"This course could serve as a model in the field."
G. Vidmar, Biostatistician, University of Ljubljana