Hi Marc, As you guessed my current point is like your second example. I actually have three groups of three, so the normal box plot drws them at positions, 1:9 by the time I've placed them where I'd like they plot at positions (roughly) 1:8, leaving me with a large right hand space that I'd like to get rid of.....
I think your code will work :) I've not seen the mixing of plot and boxplot before, so I'll have to play for a while.. Thanks again Mark > -----Original Message----- > From: Marc Schwartz [mailto:[EMAIL PROTECTED] > Sent: Thursday, March 18, 2004 10:41 AM > To: Mark Van De Vyver > Cc: 'R-Help' > Subject: Re: [R] (no subject) > > > On Wed, 2004-03-17 at 16:32, Mark Van De Vyver wrote: > > Hi Marc, > > Thanks for the response. Apologies for the lack of > detail... I have > > used 'boxwex', 'at' and ylim, to place things nicely, except I know > > have some spare room at the end of the plot, which I would > like to get > > rid of.... Your suggestion to use 'add' per the example is > one I had > > not thought of. Does any one know of a simpler approach, > to use add > > I'm need to create two boxplots, a dummy (with x taking the correct > > range of values, say boxplot(1:10, ylim = c(0, 100))) and > the real box > > plot with, say 11 box plots... > > > > Thanks again > > Mark > > > Mark, > > I am perhaps still a bit confused. Do you have 11 'unrelated' > groups of data or is it perhaps 5 pairs (10 total) plus one > additional that is separate and off by itself? > > If it is 11 separate groups, they should space evenly across > the x axis based upon the default way boxplot() handles such > things. The x axis positions will be 1:11, with the same > amount of space on the left and right hand sides of the plot. > > For example: > > # Create a 11 column dataframe > x <- data.frame(matrix(rnorm(50 * 11), ncol = 11)) > > # Do the default boxplot > boxplot(x) > > > > On the other hand, if you perhaps have the second scenario of > 5 pairs and a separate single, you could do something like > the following: > > # Create a plot window with x from 0.5 to 6.5 and y > reflecting the # range of values in 'x' plot(c(0.5, 6.5), > range(x), type = "n", ann = FALSE, axes = FALSE) > > # Now add boxplots for the 'odd' columns in 'x', adding the > 11th # column. Set the 'at' values to pair up the first 5 > cols and # plot the 11th column at x = 6.2 for symmetry. > boxplot(x[, c(1, 3, 5, 7, 9, 11)], at = c(1:5 - 0.2, 6.2), > boxwex = 0.2, add = TRUE, xaxt = "n") > > # Now add boxplots for the 'even' columns in 'x' > # Set the 'at' values to pair these up with the above > boxplot(x[, c(2, 4, 6, 8, 10)], at = 1:5 + 0.2, > boxwex = 0.2, add = TRUE, xaxt = "n") > > Not sure if that is what you are looking for, but it might > provide some food for thought. > > HTH, > > Marc Schwartz > > ______________________________________________ [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
