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i just used read.fwf (which calls perl) and i noticed something. i also have mat;lab installed on this machine, and matlab also installs a version of perl, but a different one. additionally, matlab puts its bin directory in the system path. so, if one does not canerully set the path, r will call the matlab verion of perl, and things won't work. if anybody is collection a list of pitfalls, this probably should go there. -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax:...