Thanks for the input Adding "print" took care of the first problem. The output looks like what I would expect, so I think the code is doing what I would like it to for the first 44 observations.
> print(results.df) D R D.1 R.1 V1V2dif V1V4dif 1 68.92500 75.00000 284.5250 296.0000 6.0750000 11.4750000 2 68.81081 67.00000 287.7568 283.0000 -1.8108108 -4.7567568 3 65.43902 62.00000 282.5366 279.0000 -3.4390244 -3.5365854 4 66.60000 67.25000 286.7000 288.2500 0.6500000 1.5500000 5 68.94872 71.00000 297.8462 305.0000 2.0512821 7.1538462 Etc.. When I use str(results.df) it does seem to indicate a short file of 44 observations. 'data.frame': 44 obs. of 6 variables: $ D : num 68.9 68.8 65.4 66.6 68.9 ... $ R : num 75 67 62 67.2 71 ... $ D.1 : num 285 288 283 287 298 ... $ R.1 : num 296 283 279 288 305 ... $ V1V2dif: num 6.08 -1.81 -3.44 0.65 2.05 ... $ V1V4dif: num 11.48 -4.76 -3.54 1.55 7.15 ... So I am still left with that question.. -- View this message in context: http://r.789695.n4.nabble.com/R-code-output-issues-tp2526415p2526469.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.