Re: [R] legend question
? par it is the xpd you're looking for. x - seq(-pi, pi, len = 65) par(xpd=TRUE) plot(x, sin(x), type=l, col = 2,xpd=NA) legend(x = 0, y = -1.5, legend text, pch = 1, xjust = 0.5) --- Jenny Barnes [EMAIL PROTECTED] wrote: Hi folks, Do you mind if I ask a related question that I have been having trouble with - how do you put the legend outside of the plot area (to the bottom of the area - below the x-axis title)? Could anybody show me using the example given below: x - seq(-pi, pi, len = 65) plot(x, sin(x), type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) Thank you, I've not been able to do this simple bit of programming and it is very frustrating not to be able to add a simple key. Best Wishes, Jenny Hi Emili, Even though you are calling your horizontal coordinate y, and vertical coordinate z, the first and second arguments to legend(), namely x and y, should be the horizontal and vertical coordinates, respectively; and they are given in user coordinates (e.g., legend()'s x should be between 1960 and 1975 and legend()'s y should be between 1 and 4). If you want to use normalized coordinates (i.e. 0 to 1), you can scale as in this example: legend(x = par(usr)[1] + diff(par(usr)[1:2])*normalizedCoordX, y = par(usr)[3] + diff(par(usr)[3:4])*normalizedCoordY, ...) where normalizedCoordX and Y go from 0 to 1 (see ?par, par(usr) returns vector of c(xmin,xmax,ymin,ymax) of user coordinates on a plot) You can alternatively use legend(x = topleft,...) or bottomright, and so on to place your legend. If you want to add your legend outside of the plot, you should consider increasing the margins using the 'mar' argument in par(), and also setting par(xpd=TRUE) (so stuff can show up outside of the plotting region). Best regards, ST y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) within the data limits of your x and y) --- Emili Tortosa-Ausina [EMAIL PROTECTED] wrote: Hi to all, I'm sorry for posting this question, I am sure I am missing something important but after reading the documentation I cannot find where the problem is. I want to add a legend to a figure. If I use a simple example drawn from the R Reference Manual such as, for instance: x - seq(-pi, pi, len = 65) plot(x, sin(x), type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) then everything works just fine. However, if I use other data such as, for instance: y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) plot(y, z, type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) then the legend is not shown. Any hints? Thanks in advance, Emili __ 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. Food fight? Enjoy some healthy debate __ 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. - End Forwarded Message - ~~ Jennifer Barnes PhD student: long range drought prediction Climate Extremes Group Department of Space and Climate Physics University College London Holmbury St Mary Dorking, Surrey, RH5 6NT Tel: 01483 204149 Mob: 07916 139187 Web: http://climate.mssl.ucl.ac.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. __ 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] legend question
On Wed, 28 Feb 2007 17:06:18 +0100 Emili Tortosa-Ausina [EMAIL PROTECTED] wrote: y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) plot(y, z, type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) your x and y are outside the plotting area. try using a different set, or better still use locator() to specify x, y interactively. hth, ranjan __ 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] legend question
Hi Emili, Even though you are calling your horizontal coordinate y, and vertical coordinate z, the first and second arguments to legend(), namely x and y, should be the horizontal and vertical coordinates, respectively; and they are given in user coordinates (e.g., legend()'s x should be between 1960 and 1975 and legend()'s y should be between 1 and 4). If you want to use normalized coordinates (i.e. 0 to 1), you can scale as in this example: legend(x = par(usr)[1] + diff(par(usr)[1:2])*normalizedCoordX, y = par(usr)[3] + diff(par(usr)[3:4])*normalizedCoordY, ...) where normalizedCoordX and Y go from 0 to 1 (see ?par, par(usr) returns vector of c(xmin,xmax,ymin,ymax) of user coordinates on a plot) You can alternatively use legend(x = topleft,...) or bottomright, and so on to place your legend. If you want to add your legend outside of the plot, you should consider increasing the margins using the 'mar' argument in par(), and also setting par(xpd=TRUE) (so stuff can show up outside of the plotting region). Best regards, ST y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) within the data limits of your x and y) --- Emili Tortosa-Ausina [EMAIL PROTECTED] wrote: Hi to all, I'm sorry for posting this question, I am sure I am missing something important but after reading the documentation I cannot find where the problem is. I want to add a legend to a figure. If I use a simple example drawn from the R Reference Manual such as, for instance: x - seq(-pi, pi, len = 65) plot(x, sin(x), type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) then everything works just fine. However, if I use other data such as, for instance: y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) plot(y, z, type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) then the legend is not shown. Any hints? Thanks in advance, Emili __ 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. Food fight? Enjoy some healthy debate __ 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] legend question
try: y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) plot(y, z, type=l, col = 2) legend(topleft, legend text, pch = 1, xjust = 0.5) On 2/28/07, Emili Tortosa-Ausina [EMAIL PROTECTED] wrote: Hi to all, I'm sorry for posting this question, I am sure I am missing something important but after reading the documentation I cannot find where the problem is. I want to add a legend to a figure. If I use a simple example drawn from the R Reference Manual such as, for instance: x - seq(-pi, pi, len = 65) plot(x, sin(x), type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) then everything works just fine. However, if I use other data such as, for instance: y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) plot(y, z, type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) then the legend is not shown. Any hints? Thanks in advance, Emili __ 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. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? [[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.
Re: [R] legend question
Hi folks, Do you mind if I ask a related question that I have been having trouble with - how do you put the legend outside of the plot area (to the bottom of the area - below the x-axis title)? Could anybody show me using the example given below: x - seq(-pi, pi, len = 65) plot(x, sin(x), type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) Thank you, I've not been able to do this simple bit of programming and it is very frustrating not to be able to add a simple key. Best Wishes, Jenny Hi Emili, Even though you are calling your horizontal coordinate y, and vertical coordinate z, the first and second arguments to legend(), namely x and y, should be the horizontal and vertical coordinates, respectively; and they are given in user coordinates (e.g., legend()'s x should be between 1960 and 1975 and legend()'s y should be between 1 and 4). If you want to use normalized coordinates (i.e. 0 to 1), you can scale as in this example: legend(x = par(usr)[1] + diff(par(usr)[1:2])*normalizedCoordX, y = par(usr)[3] + diff(par(usr)[3:4])*normalizedCoordY, ...) where normalizedCoordX and Y go from 0 to 1 (see ?par, par(usr) returns vector of c(xmin,xmax,ymin,ymax) of user coordinates on a plot) You can alternatively use legend(x = topleft,...) or bottomright, and so on to place your legend. If you want to add your legend outside of the plot, you should consider increasing the margins using the 'mar' argument in par(), and also setting par(xpd=TRUE) (so stuff can show up outside of the plotting region). Best regards, ST y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) within the data limits of your x and y) --- Emili Tortosa-Ausina [EMAIL PROTECTED] wrote: Hi to all, I'm sorry for posting this question, I am sure I am missing something important but after reading the documentation I cannot find where the problem is. I want to add a legend to a figure. If I use a simple example drawn from the R Reference Manual such as, for instance: x - seq(-pi, pi, len = 65) plot(x, sin(x), type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) then everything works just fine. However, if I use other data such as, for instance: y-c(1960, 1965, 1970, 1975) z-c(1, 2, 3, 4) plot(y, z, type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) then the legend is not shown. Any hints? Thanks in advance, Emili __ 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. Food fight? Enjoy some healthy debate __ 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. - End Forwarded Message - ~~ Jennifer Barnes PhD student: long range drought prediction Climate Extremes Group Department of Space and Climate Physics University College London Holmbury St Mary Dorking, Surrey, RH5 6NT Tel: 01483 204149 Mob: 07916 139187 Web: http://climate.mssl.ucl.ac.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] legend question
On Wed, 28 Feb 2007 16:52:05 + (GMT), Jenny Barnes [EMAIL PROTECTED] wrote: Hi folks, Do you mind if I ask a related question that I have been having trouble with - how do you put the legend outside of the plot area (to the bottom of the area - below the x-axis title)? Could anybody show me using the example given below: x - seq(-pi, pi, len = 65) plot(x, sin(x), type=l, col = 2) legend(x = -3, y = .9, legend text, pch = 1, xjust = 0.5) Thank you, I've not been able to do this simple bit of programming and it is very frustrating not to be able to add a simple key. Have a look at ?par and argument 'inset' in ?legend itself. Here's one way: x - seq(-pi, pi, len=65) par(mar=c(par(mar)[1] + 2, par(mar)[-1])) plot(x, sin(x), type=l, col=2) par(xpd=TRUE) legend(bottom, legend text, pch=1, inset=-0.3) -- Seb __ 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.
