Rd.sty defines \newlength{\middle}
which seems to be in conflict with the my latex installation. Here is a minimal example: \documentclass{article} \newlength{\middle} \begin{document} \end{document} It runs fine on a Linux box: carp:136% latex test.tex This is TeX, Version 3.14159 (Web2C 7.3.1) (test.tex LaTeX2e <2000/06/01> Babel <v3.7h> and hyphenation patterns for american, french, german, ngerman, i talian, nohyphenation, loaded. (/usr/share/texmf/tex/latex/base/article.cls Document Class: article 2000/05/19 v1.4b Standard LaTeX document class (/usr/share/texmf/tex/latex/base/size10.clo)) No file test.aux. (test.aux) ) No pages of output. Transcript written on test.log. but fails on a Mac with the TeX installed using GW's i-installer: bass$ latex test.tex This is e-TeXk, Version 3.141592-2.1 (Web2C 7.5.2) \write18 enabled. %&-line parsing enabled. (/usr/local/teTeX/share/texmf.tetex/web2c/cp8bit.tcx) entering extended mode (./test.tex LaTeX2e <2001/06/01> Babel <v3.7h> and hyphenation patterns for american, nohyphenation, loaded. (/usr/local/teTeX/share/texmf.tetex/tex/latex/base/article.cls Document Class: article 2001/04/21 v1.4e Standard LaTeX document class (/usr/local/teTeX/share/texmf.tetex/tex/latex/base/size10.clo)) ! LaTeX Error: Command \middle already defined. Or name \end... illegal, see p.192 of the manual. I couldn't find where \middle is defined. Has anyone else experienced the same problem? Michael -- Na (Michael) Li, Ph.D. Division of Biostatistics A443 Mayo Building, MMC 303 School of Public Health 420 Delaware St SE University of Minnesota Minneapolis, MN 55455 Phone: (612) 626-4765 Email: [EMAIL PROTECTED] Fax: (612) 626-0660 http://www.biostat.umn.edu/~nali ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel