Re: [R] bars' values on barplot
Why do you feel the need to add the numbers to your barplot? Occasionally this can be useful (and others have answered the question on how to do it), but often when you feel the need to add numbers to a graph you are really doing 2 things: 1. admitting the graph has failed 2. replacing the graph with a poorly laid out table (with a colorful but distracting background). If this is the case, then replacing the graph with a proper table is probably the better option. Just a couple of things to think about, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] (801) 408-8111 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of akki Sent: Saturday, August 04, 2007 4:44 PM To: r-help@stat.math.ethz.ch Subject: [R] bars' values on barplot Hi, I need bars' values on barplot, and I don't know how I can put it. I do my barplot as: data-read.table(/my_path/file.dat,header=T, sep=\t) barplot(as.matrix(data),log=y,beside=TRUE,main=my_title, xlab=x name, ylab=y name). How can I add the values on each bar? Thanks.. [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch 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. __ R-help@stat.math.ethz.ch 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.
Re: [R] bars' values on barplot
Akki, 1. Have a look at the result from a barplot() call. From the help: A numeric vector (or matrix, when beside = TRUE), say mp, giving the coordinates of all the bar midpoints drawn, useful for adding to the graph. 2. Have a look at the text() function that will annotate plots! So, try this for starters: my.values=1:5 x - barplot(my.values, ylim=c(0,7)) text(x, 0.4+my.values, wibble) Hope this helps, Best wishes, Mark On 04/08/07, akki [EMAIL PROTECTED] wrote: Hi, I need bars' values on barplot, and I don't know how I can put it. I do my barplot as: data-read.table(/my_path/file.dat,header=T, sep=\t) barplot(as.matrix(data),log=y,beside=TRUE,main=my_title, xlab=x name, ylab=y name). How can I add the values on each bar? Thanks.. [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch 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. __ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ -- Dr. Mark Wardle Clinical research fellow and specialist registrar, Neurology Cardiff, UK __ R-help@stat.math.ethz.ch 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.
Re: [R] bars' values on barplot
Much better. Thanks! Mark On 05/08/07, Adrian Dusa [EMAIL PROTECTED] wrote: On Sunday 05 August 2007, Mark Wardle wrote: [...] So, try this for starters: my.values=1:5 x - barplot(my.values, ylim=c(0,7)) text(x, 0.4+my.values, wibble) Mark, you could use the pos argument from ?par: my.values=10:15 x - barplot(my.values, ylim=c(0,11)) text(x, my.values, wibble, pos=3) # always does what you want, whereas: text(x, 0.4+my.values, wibble) # doesn't look very nice HTH, Adrian -- Adrian Dusa Romanian Social Data Archive 1, Schitu Magureanu Bd 050025 Bucharest sector 5 Romania Tel./Fax: +40 21 3126618 \ +40 21 3120210 / int.101 __ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ -- Dr. Mark Wardle Clinical research fellow and specialist registrar, Neurology Cardiff, UK __ R-help@stat.math.ethz.ch 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.
Re: [R] bars' values on barplot
On Sunday 05 August 2007, Mark Wardle wrote: [...] So, try this for starters: my.values=1:5 x - barplot(my.values, ylim=c(0,7)) text(x, 0.4+my.values, wibble) Mark, you could use the pos argument from ?par: my.values=10:15 x - barplot(my.values, ylim=c(0,11)) text(x, my.values, wibble, pos=3) # always does what you want, whereas: text(x, 0.4+my.values, wibble) # doesn't look very nice HTH, Adrian -- Adrian Dusa Romanian Social Data Archive 1, Schitu Magureanu Bd 050025 Bucharest sector 5 Romania Tel./Fax: +40 21 3126618 \ +40 21 3120210 / int.101 __ R-help@stat.math.ethz.ch 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.
