[R] Scatter Plot in R - Help
Dear All, I am using the following commands to do the scatter plot of two vectors, say X and Y. plot(X,Y, col=blue) abline(a=1,b=1, col=red) abline(a=-1,b=1, col=green) I would like to split the scatter plot into 3 part with 3 different colors: (i) points lies between 2 lines, (ii) points above line 1, and (iii) points below line 2. I am struggling to do this. I would greatly appreciate any help in doing this. Thanks in advance. Kind regards, Ezhil __ 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] Scatter Plot in R - Help
Quoting A Ezhil [EMAIL PROTECTED]: Dear All, I am using the following commands to do the scatter plot of two vectors, say X and Y. plot(X,Y, col=blue) abline(a=1,b=1, col=red) abline(a=-1,b=1, col=green) I would like to split the scatter plot into 3 part with 3 different colors: (i) points lies between 2 lines, (ii) points above line 1, and (iii) points below line 2. I am struggling to do this. I would greatly appreciate any help in doing this. Thanks in advance. Kind regards, Ezhil check ?points 'points' allows you to plot points using different plotting parameters (type, size, colours...). You can subset the points in your scatter plot into three groups, and use 'points' on each group separately. For instance: x-sample(c(-10:10),size=21) y-sample(c(-10:10),size=21) plot(x,y, col=blue,pch=16) abline(a=1,b=1, col=red) abline(a=-1,b=1, col=green) # then find the red and green groups: reds-which(yx+1) greens-which(xy+1) points(x[reds],y[reds], col=red,pch=16) points(x[greens],y[greens], col=green,pch=16) you could also choose to not plot anything at first (use parameter type=n), and define not just the red and green groups, but also teh blue ones too. You may need to do this if you want to use different plotting characters or sizes and overplotting doesn't look good. Jose -- Dr. Jose I. de las Heras Email: [EMAIL PROTECTED] The Wellcome Trust Centre for Cell BiologyPhone: +44 (0)131 6513374 Institute for Cell Molecular BiologyFax: +44 (0)131 6507360 Swann Building, Mayfield Road University of Edinburgh Edinburgh EH9 3JR 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] Scatter Plot in R - Help
Here is a recent posting by Petr Klasterecky that does not seem to be on the archive yet that may help. -- What do you mean by background? Maybe this is enough: plot(seq(-3,3,.01), dnorm(seq(-3,3,.01)), type=n, xlab=x, ylab=f(x), main=Normal density) polygon(x=c(-4,0,0,-4), y=c(-1,-1,.5,.5), col=red) polygon(x=c(4,0,0,4), y=c(-1,-1,.5,.5), col=blue) lines(seq(-3,3,.01), dnorm(seq(-3,3,.01)), type=l, lwd=2) Play a little bit with the polygon margins to get what you need. You can even generate them automatically based on your data. Petr --- --- A Ezhil [EMAIL PROTECTED] wrote: Dear All, I am using the following commands to do the scatter plot of two vectors, say X and Y. plot(X,Y, col=blue) abline(a=1,b=1, col=red) abline(a=-1,b=1, col=green) I would like to split the scatter plot into 3 part with 3 different colors: (i) points lies between 2 lines, (ii) points above line 1, and (iii) points below line 2. I am struggling to do this. I would greatly appreciate any help in doing this. Thanks in advance. Kind regards, Ezhil __ 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] Scatter Plot in R - Help
If I understand correctly what A. Ezhil asked for, polygons won't help here. For coloring the individual points check ?points and use subsets, e.g. plot(x,y) points(x[xy-1],y[xy-1], col=red) or something similar. Petr John Kane napsal(a): Here is a recent posting by Petr Klasterecky that does not seem to be on the archive yet that may help. -- What do you mean by background? Maybe this is enough: plot(seq(-3,3,.01), dnorm(seq(-3,3,.01)), type=n, xlab=x, ylab=f(x), main=Normal density) polygon(x=c(-4,0,0,-4), y=c(-1,-1,.5,.5), col=red) polygon(x=c(4,0,0,4), y=c(-1,-1,.5,.5), col=blue) lines(seq(-3,3,.01), dnorm(seq(-3,3,.01)), type=l, lwd=2) Play a little bit with the polygon margins to get what you need. You can even generate them automatically based on your data. Petr --- --- A Ezhil [EMAIL PROTECTED] wrote: Dear All, I am using the following commands to do the scatter plot of two vectors, say X and Y. plot(X,Y, col=blue) abline(a=1,b=1, col=red) abline(a=-1,b=1, col=green) I would like to split the scatter plot into 3 part with 3 different colors: (i) points lies between 2 lines, (ii) points above line 1, and (iii) points below line 2. I am struggling to do this. I would greatly appreciate any help in doing this. Thanks in advance. Kind regards, Ezhil __ 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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ 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] Scatter Plot in R - Help
When I reread it, I think you are right. I read split the data plot and assumed a backround rather than just the points . --- Petr Klasterecky [EMAIL PROTECTED] wrote: If I understand correctly what A. Ezhil asked for, polygons won't help here. For coloring the individual points check ?points and use subsets, e.g. plot(x,y) points(x[xy-1],y[xy-1], col=red) or something similar. Petr John Kane napsal(a): Here is a recent posting by Petr Klasterecky that does not seem to be on the archive yet that may help. -- What do you mean by background? Maybe this is enough: plot(seq(-3,3,.01), dnorm(seq(-3,3,.01)), type=n, xlab=x, ylab=f(x), main=Normal density) polygon(x=c(-4,0,0,-4), y=c(-1,-1,.5,.5), col=red) polygon(x=c(4,0,0,4), y=c(-1,-1,.5,.5), col=blue) lines(seq(-3,3,.01), dnorm(seq(-3,3,.01)), type=l, lwd=2) Play a little bit with the polygon margins to get what you need. You can even generate them automatically based on your data. Petr --- --- A Ezhil [EMAIL PROTECTED] wrote: Dear All, I am using the following commands to do the scatter plot of two vectors, say X and Y. plot(X,Y, col=blue) abline(a=1,b=1, col=red) abline(a=-1,b=1, col=green) I would like to split the scatter plot into 3 part with 3 different colors: (i) points lies between 2 lines, (ii) points above line 1, and (iii) points below line 2. I am struggling to do this. I would greatly appreciate any help in doing this. Thanks in advance. Kind regards, Ezhil __ 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. -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic __ 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] scatter plot with axes drawn on the same scale
Dear useRs, I'd like to produce some scatter plots where N units on the X axis are equal to N units on the Y axis (as measured with a ruler, on screen or paper). This approach x - sample(10:200,40) ; y - sample(20:100,40) windows(width=max(x),height=max(y)) plot(x,y) is better than plot(x,y) but doesn't solve the problem because of the other parameters (margins etc). Is there an easy, official way of sizing the axes to the same scale, one that would also work with multiple scatter plots being sent to the same pdf() - plus perhaps layout() or par(mfrow())? Thank you, b. __ 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] scatter plot with axes drawn on the same scale
Try: plot(x, y, asp = 1) --sundar bogdan romocea wrote: Dear useRs, I'd like to produce some scatter plots where N units on the X axis are equal to N units on the Y axis (as measured with a ruler, on screen or paper). This approach x - sample(10:200,40) ; y - sample(20:100,40) windows(width=max(x),height=max(y)) plot(x,y) is better than plot(x,y) but doesn't solve the problem because of the other parameters (margins etc). Is there an easy, official way of sizing the axes to the same scale, one that would also work with multiple scatter plots being sent to the same pdf() - plus perhaps layout() or par(mfrow())? Thank you, b. __ 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] scatter plot with axes drawn on the same scale
Sundar Dorai-Raj sundar.dorai-raj at pdf.com writes: Try: plot(x, y, asp = 1) --sundar or eqscplot from the MASS package. __ 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] scatter plot with axes drawn on the same scale
On 7/28/06, Ben Bolker [EMAIL PROTECTED] wrote: Sundar Dorai-Raj sundar.dorai-raj at pdf.com writes: Try: plot(x, y, asp = 1) --sundar or eqscplot from the MASS package. or library(lattice) xyplot(y ~ x, aspect = iso) -Deepayan __ 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] scatter plot
I'd like to do a simple scatter plot but instead of using the variable values on the X axis I would like to plot the percentiles. I searched in the manual for percentiles but did not find what I was looking for. I've been using SAS for several years but I new to R. -- Dean Sonneborn Programmer Analyst Department of Public Health Sciences University of California, Davis (916) 734-6656 __ 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
Re: [R] scatter plot
Here is a hack par(mfrow=c(1,2)) x - rnorm(1000) y - x + rnorm(1000) xp - (rank(x)-1)/(length(x)-1) plot( x, y ) plot( xp, y ) But do notice that by using percentiles, it spreads the 'x' values evenly. This may be important for points at the extremes. Regards, Adai On Thu, 2005-08-11 at 15:40 -0700, Dean Sonneborn wrote: I'd like to do a simple scatter plot but instead of using the variable values on the X axis I would like to plot the percentiles. I searched in the manual for percentiles but did not find what I was looking for. I've been using SAS for several years but I new to R. __ 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
[R] scatter plot
I'm doing this scatter plot and it's almost what I want. What I would
like to change is to have the X axis (the lipid_adj_pcb_cent variable)
be plotted in percentiles not the variable values. Here's the code I
currently using:
xyplot(zawgt_sk_cent ~ lipid_adj_pcb_cent, panel=function(x,y){
panel.xyplot(x,y)
panel.lmline(x,y)}, auto.key=TRUE, data=centered, na.strings=,
fontfamily = HersheySans , scales = list( tick.number = 10))
--
Dean Sonneborn
Programmer Analyst
Department of Public Health Sciences
University of California, Davis
(916) 734-6656
[[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
[R] scatter plot and marginal
Hallo, I would like to add the marginal distributions along the X and the Y axis to a scatter plot. Can anybody help me, please? Thank you, Paolo -- Paolo Bulla Istituto di Metodi Quantitativi Università L. Bocconi viale Isonzo 25 20136 Milano [EMAIL PROTECTED] __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
RE: [R] scatter plot and marginal
See example(layout). Andy From: Paolo Bulla Hallo, I would like to add the marginal distributions along the X and the Y axis to a scatter plot. Can anybody help me, please? Thank you, Paolo -- Paolo Bulla Istituto di Metodi Quantitativi Università L. Bocconi viale Isonzo 25 20136 Milano [EMAIL PROTECTED] __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] scatter plot and marginal
On Mon, 2004-10-04 at 08:33, Paolo Bulla wrote: Hallo, I would like to add the marginal distributions along the X and the Y axis to a scatter plot. Can anybody help me, please? Thank you, Paolo See the last example in ?layout HTH, Marc Schwartz __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] scatter plot and marginal
Paolo Bulla wrote: Hallo, I would like to add the marginal distributions along the X and the Y axis to a scatter plot. Can anybody help me, please? Thank you, Paolo The simplest thing you can do is like plot(x, y) rug(x, side=1, col=red) rug(y, side=2, col=red) or if there are many coincident x (y) values rug(jitter(x), side=1, col=red) rug(jitter(y), side=2, col=red) Kjetil -- Kjetil Halvorsen. Peace is the most effective weapon of mass construction. -- Mahdi Elmandjra __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] scatter plot and marginal
Dear Paolo, The scatterplot() function in the car package can show marginal boxplots. I hope this helps, John On Mon, 4 Oct 2004 15:33:26 +0200 Paolo Bulla [EMAIL PROTECTED] wrote: Hallo, I would like to add the marginal distributions along the X and the Y axis to a scatter plot. Can anybody help me, please? Thank you, Paolo -- Paolo Bulla Istituto di Metodi Quantitativi Università L. Bocconi viale Isonzo 25 20136 Milano [EMAIL PROTECTED] __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html John Fox Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Scatter plot matrix over several pages
Hello R-helpers, I'm plotting a scatter plot matrix, but have more variables to consider than will legibly fit on one page. I'd appreciate some help on how I can persuade pairs or splom to plot the full matrix of plots over several pages. With thanks, John Field __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Scatter Plot Matrix
I am researching the origin and use of the scatter plot matrix or scatter matrix. A common event with the normal scatter diagram is the overlaying of points, given that one (x,y) pair exists and that each (x,y) point plotted exists at the same point. What I am wondering is if it is possible to expand the (x,y) area to form a larger cell, such that each point plotted would exist distinctly within the larger area. In the example, each dot represents an (x,y) point that exists within the bounded area of the (x,y) pair This possibility allows each point plotted to be distinctly recognized. Your thoughts on this would be greatly appreciated. Donna D. Floyd USA __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
Re: [R] Scatter Plot Matrix
?jitter may help you. On Thu, 11 Dec 2003, Donna Floyd wrote: I am researching the origin and use of the scatter plot matrix or scatter matrix. A common event with the normal scatter diagram is the overlaying of points, given that one (x,y) pair exists and that each (x,y) point plotted exists at the same point. What I am wondering is if it is possible to expand the (x,y) area to form a larger cell, such that each point plotted would exist distinctly within the larger area. In the example, each dot represents an (x,y) point that exists within the bounded area of the (x,y) pair This possibility allows each point plotted to be distinctly recognized. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
