Hi, Your data may look like the following and named speed.txt in working directory. Then the cod follows the data. The graph is attached as speed.pdf.
Speed 50 52 55 57 58 59 60 61 62 63 64 65 65 65 67 68 68 68 68 69 69 70 71 72 72 72 73 73 73 73 75 76 77 78 79 > speed <- read.table("speed.txt",header=TRUE) > speed Speed 1 50 2 52 3 55 4 57 5 58 6 59 7 60 8 61 9 62 10 63 11 64 12 65 13 65 14 65 15 67 16 68 17 68 18 68 19 68 20 69 21 69 22 70 23 71 24 72 25 72 26 72 27 73 28 73 29 73 30 73 31 75 32 76 33 77 34 78 35 79 > hist(speed$Speed) Speed.pdf <http://r.789695.n4.nabble.com/file/n4703616/Speed.pdf> -- View this message in context: http://r.789695.n4.nabble.com/Simple-Histogram-tp4703615p4703616.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.