Hi all, I have a gas disk simulation and try to compute gas density profile. I generate to make spherical average density profile by feeding a sphere object to the BinnedProfile1D and cylindrical average density profile by feeding a disk object to the BinnedProfile1D. Surprisingly, both density profile is almost the same. Does any one have idea why? FYI, I past my yt script at http://paste.yt-project.org/show/3046/ . Thank you in advance. Junhwan -- -------------------------------------------------------------- Jun-Hwan Choi, Ph.D. Department of Physics and Astronomy, University of Kentucky Tel: (859) 897-6737 Fax: (859) 323-2846 Email: jhchoi@pa.uky.edu URL: http://www.pa.uky.edu/~jhchoi --------------------------------------------------------------