Ahmad_Abu_Hammour/STUDENTS/FIRE%FIRE@fordham.edu
2003-Oct-03 17:17 UTC
[R] "deriv" and chain rule and matrix derivatives
Hi, Anybody knows if I c MATRIX derivation. Simple examples: y=expression(log(x)) z=express deriv(z,"x") # chain rule f=expression(det(x)) # where x is an (nxn) matrix deriv(f, "x") Is ther Thank you ver Ahmad Abu Hammour PS. by the way I tried to send the same email using my http-ba account hammour at msn.com, but I could not, although I set send email to