Hello list I am trying to solve a problem when drawing a figure related to the dataframe below. I draw V6 in Y axes and V3 as X axes. The data are grouped by V1 AND V2. I use this commande to make it:
xyplot(cm[,6]~cm[,3],type="b",group=interaction(cm[,1],cm[,2],sep="/"), auto.key =list( title="Makespan en fonction de beta", points = FALSE, columns=2, lines = TRUE) ,data=cm,xlab=expression(beta),ylab="Ratio") The problem is that, R puts (for example) the entry C/D in the legend, however, I have no such entry. Note that R it does not draw a line for that entry. So, the question : how to do to remove the empty groups from the legend. Cordially > cm V1 V2 V3 V4 V5 V6 1 C L 0.0 732179.0 686983 1.065789 2 C L 0.2 900956.4 686983 1.311468 3 C L 0.4 964725.0 686983 1.404292 4 C L 0.6 1017984.0 686983 1.481818 5 C L 0.8 1064745.8 686983 1.549887 6 C L 1.0 1107269.0 686983 1.611785 7 C S 0.0 803926.0 686983 1.170227 8 C S 0.2 1020492.0 686983 1.485469 9 C S 0.4 1134818.0 686983 1.651887 10 C S 0.6 1223596.0 686983 1.781115 11 C S 0.8 1322548.8 686983 1.925155 12 C S 1.0 1395714.0 686983 2.031657 13 I L 0.0 2628113.0 686983 3.825587 14 I L 0.2 2628113.0 686983 3.825587 15 I L 0.4 2628113.0 686983 3.825587 16 I L 0.6 2628113.0 686983 3.825587 17 I L 0.8 2628113.0 686983 3.825587 18 I L 1.0 2628113.0 686983 3.825587 19 I S 0.0 2628113.0 686983 3.825587 20 I S 0.2 2628113.0 686983 3.825587 21 I S 0.4 2475448.0 686983 3.603361 22 I S 0.6 2475448.0 686983 3.603361 23 I S 0.8 2475448.0 686983 3.603361 24 I S 1.0 2475448.0 686983 3.603361 25 I F 0.0 871670.0 686983 1.268838 26 I F 0.2 1066742.0 686983 1.552792 27 I F 0.4 1136213.0 686983 1.653917 28 I F 0.6 1210547.0 686983 1.762121 29 I F 0.8 1256777.0 686983 1.829415 30 I F 1.0 1304294.0 686983 1.898583 31 I I 0.0 897718.0 686983 1.306754 32 I I 0.2 1123968.0 686983 1.636093 33 I I 0.4 1301097.0 686983 1.893929 34 I I 0.6 1373663.0 686983 1.999559 35 I I 0.8 1424121.0 686983 2.073008 36 I I 1.0 1542813.0 686983 2.245780 37 I D 0.0 937621.0 686983 1.364839 38 I D 0.2 1205063.0 686983 1.754138 39 I D 0.4 1341839.0 686983 1.953235 40 I D 0.6 1431970.0 686983 2.084433 41 I D 0.8 1538944.0 686983 2.240149 42 I D 1.0 1670073.0 686983 2.431025 43 D L 0.0 731904.0 686983 1.065389 44 D L 0.2 900183.0 686983 1.310342 45 D L 0.4 964870.1 686983 1.404504 46 D L 0.6 1017462.8 686983 1.481060 47 D L 0.8 1064435.2 686983 1.549435 48 D L 1.0 1107595.0 686983 1.612260 49 D S 0.0 798289.0 686983 1.162022 50 D S 0.2 1014643.2 686983 1.476955 51 D S 0.4 1125711.8 686983 1.638631 52 D S 0.6 1220923.0 686983 1.777224 53 D S 0.8 1306571.2 686983 1.901897 54 D S 1.0 1399836.0 686983 2.037657 55 D F 0.0 724924.0 686983 1.055229 56 D F 0.2 935413.5 686983 1.361625 57 D F 0.4 1011621.9 686983 1.472557 58 D F 0.6 1071081.6 686983 1.559109 59 D F 0.8 1139325.8 686983 1.658448 60 D F 1.0 1181282.1 686983 1.719522 61 D I 0.0 755841.0 686983 1.100232 62 D I 0.2 964335.0 686983 1.403725 63 D I 0.4 1051233.4 686983 1.530218 64 D I 0.6 1110842.0 686983 1.616986 65 D I 0.8 1193509.0 686983 1.737320 66 D I 1.0 1264249.0 686983 1.840292 67 D D 0.0 751660.0 686983 1.094146 68 D D 0.2 1019735.0 686983 1.484367 69 D D 0.4 1101191.0 686983 1.602938 70 D D 0.6 1191547.0 686983 1.734464 71 D D 0.8 1293433.0 686983 1.882773 72 D D 1.0 1340360.0 686983 1.951082 [[alternative HTML version deleted]] ______________________________________________ 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.