Dr. Hahsler, Thank you so much for looking at my code. I made sure that I had TSP_1.0-3 install and ran the code again (this time with "<-" instead of "=" for my assignments). I received the same response. I checked my sessionInfo and did not see anything out of the ordinary. Does anything look out of place to you? Thank you for your time. Here is my sessionInfo:
R version 2.13.1 (2011-07-08) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] TSP_1.0-3 -- View this message in context: http://r.789695.n4.nabble.com/ATSP-to-TSP-reformulation-tp3777105p3778959.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.