Please see my previous note and please read the documentation. Also note the difference between a character string literal in quotes and the name of a vector, which is usually not quoted. Frank
Chalikias George wrote: > > The actual dataframe that I have imported on R is > > Death adp > 1 0 58.00 > 2 1 18.70 > 3 0 21.75 > 4 1 25.35 > 5 0 20.55 > 6 1 28.05 > 7 0 50.15 > 8 1 31.25 > 9 1 32.75 > 10 1 28.95 > 11 1 15.10 > 12 0 45.05 > 13 1 19.95 > 14 0 32.95 > 15 0 22.60 > 16 0 10.75 > 17 0 41.80 > 18 0 27.05 > 19 1 26.25 > 20 0 34.40 > 21 1 24.65 > 22 1 42.30 > 23 0 19.80 > 24 0 47.20 > 25 1 25.90 > 26 1 30.70 > 27 1 28.60 > 28 1 25.80 > 29 0 27.05 > 30 0 14.40 > 31 0 28.40 > 32 0 48.45 > 33 0 17.85 > 34 1 30.85 > 35 1 24.75 > 36 0 16.20 > 37 0 34.10 > 38 0 12.00 > 39 0 24.40 > 40 0 69.50 > 41 1 36.45 > 42 0 41.55 > 43 1 17.80 > 44 0 40.10 > 45 1 21.35 > 46 1 22.90 > 47 0 63.80 > 48 1 45.80 > 49 0 70.65 > 50 0 54.00 > 51 0 26.90 > 52 0 50.75 > 53 0 28.20 > 54 1 23.25 > 55 1 18.10 > 56 0 29.20 > 57 1 52.80 > 58 0 46.60 > 59 1 32.55 > 60 0 74.50 > > The R command that I actually use is > rcspline.plot ("adp", "Death", > model="logistic", nk=3, knots=NULL) > > and the >rcspline.eval ("adp", nk=3, inclx=FALSE, knots.only=FALSE, > type="ordinary") > > For both the commands I receive the same message : " fewer than 6 non > missing observations". > > George > ----- Frank Harrell Department of Biostatistics, Vanderbilt University -- View this message in context: http://r.789695.n4.nabble.com/rcspline-plot-query-tp3590233p3591951.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.