[zelig] getting the mlogit demo to run

Hi all, I wanted to see the mlogit demo, on OSX 10.4.4, running R 2.2.1, latest version of Zelig. The following describes the problems I encountered, and provides solutions for some of them. A solution to the latest problem would be very helpful. ----- Task: Install Zelig. (Developer tools are installed, make is available etc.) Result: VGAM failed to install. So I downloaded the tarball from the VGAM pages, and tried to install from the local source bundle. This failed again with a linking error: "ld: can't locate file for: - lcc_dynamic". Notes: Judging from the regular R mailing list it is not unusual to get fortran linking errors on OSX because of compiler incompatibility, usually concerning restFP and saveFP symbols. The solution seems to be to hand "-lcc_dynamic.a" to the linker, which VGAM duly does. However, the latest version of OSX, can't find it, though the man page for 'ld' suggests its on one of the paths ld should check. This manual symbolic linking approach makes it available, though it's unclear to me how robust a fix it is. Solution: Trawling the web suggested the following incantation: ln -s /usr/lib/gcc/powerpc-apple-darwin8/4.0.0/libgcc.a /usr/lib\ /libcc_dynamic.a Out-of-the-box OSX users will want to prepend this with 'sudo' to run as root. Credit for this solution (if it really is the solution) goes to the Octave mailing list members: http://www.octave.org/ mailing-lists/help-octave/2005/4683 VGAM now loads. ----- Task: Show the mlogit demo. Call: demo(mlogit) Result: demo runs the model part successfully and chokes on visualization - vcd package not available. Solution: install the vcd package ----- Task: Make vcd run. Call: library(vcd) Result: Fails due to absence of colorspace package Solution: Install colorspace package. vcd now loads. ----- Task: Show the mlogit demo. Call: demo(logit) again. Result: demo runs up until the first ternary plot is shown. Then fails with error message: Error in plot.xy(xy.coords(x, y), type = type, pch = pch, col = col, bg = bg, : plot.new has not been called yet ----- And that's as far as I've got. Any thoughts on getting further would be greatly appreciated. Will - Zelig Mailing List, served by Harvard-MIT Data Center Send messages: zelig(a)latte.harvard.edu [un]subscribe Options: http://lists.hmdc.harvard.edu/?info=zelig Zelig program information: http://gking.harvard.edu/zelig/