similar to: plot pch

Hi All, I'm wondering whether there is a quick way to know the position of a specific charcater in a long character: for example frg="((D:41.04,I:41.04):45.05,(((E:2.32,((G:0.67,J:0.67):0.44,H:1.11):1.21)" and I would like to know that the 1st, 2nd, 26th, 27th, 28th ... character is "(", is there a quick way to do that? Thanks! Hua

Dear list, I have a big deal concerning the development of a Taylor expansion. require(Matrix) e1 <- as.vector(1:5) e2 <- as.vector(6:10) in order to obtain all the combinations between these two vectors following a Taylor expansion (or more simply through a Maclaurin series) for real numbers. We have f(x) = f(0) + f'(0)(x-0) + f''(0)(x-0)^2/2! + ? + f^(k)(0)(x-0)^k/k!

Dear All, I am trying to plot a smoothed hazard funciton using the LOCFIT library. Suppose my locfit model is "loc.fit", my plot command looks like this: plot(loc.rw, lty="solid", pch=1, xlab="Age at Risk", ylab="Hazard Rate", ylim=c(0, .5), lwd=2) What's interesting is that whichever number I used in the "pch=" option, I still get a line

Dear R-helpers, x <- rep(1:2, 4) y <- c(2, 4, 3, 5, 1, 3, 2, 4) w <- factor(rep(1:2, each = 4)) v <- rep(1:2, each = 2, 2) xyplot(y ~ x | w, groups = v, type = 'b') How do I tell xyplot to use four colors and four plot characters and four line types? And how do I set up an appropriate key in each? _____________________________ Professor Michael Kubovy University of Virginia

Hi, I am trying to compare two 3D plots. For that, I am trying to use the "pch" parameter in the "points3d" function, but it is not working. Is it implemented? Any suggestion? Here goes a reproducible code. I wanted the second plot having different symbols for the points. x <- rbind(matrix(rnorm(100, sd = 0.3), ncol = 2), matrix(rnorm(100, mean = 1, sd = 0.3),

Dear All, I am using most current version of R (3.0.2) and lattice (0.20-24). But can not set appropriate pch type with the following code. Could anyone help me? splom(~iris[1:4], groups = iris$Species, pch=1:3, auto.key = list(space = 'top', columns = 3, pch=1:3)) Thanks John [[alternative HTML version deleted]]

Both, in the manuals for par() and points() I could not find a note on the default value of "pch". I think it would be rather helpful to add a note that the default is 1 (in both manuals). This would, for example, help users that want to draw a legend. And yes, I know that one can obtain the default by inspecting par() but I think for many users (especially beginneRs) this is not

I'm not sure exactly where to point my finger with this one, but there is a nasty surprise to the unsuspecting user. There is no check on the length of the vector passed in the pch= argument to plot, it is just recycled as necessary: plot(1:10,1:10,pch=1:2) gives alternating circles and triangles. The nasty bits come up especially with plot.formula: x<-1:10;y<-1:10

I'd like to suggest changes to three help pages, regarding the use of pch=NA to suppress plotting symbols. See below. Arni R 2.0.1 on WinXP === help(bxp) === The argument outpch=" " needs to be replaced with outpch=NA in two places. I actually wrote this part of the documentation myself at one point, but have now realized that pch=NA and pch=" " are not the same:

I'd like to iterate my earlier request (#7737) to change the documentation for bxp(). The argument outpch=" " needs to be replaced with outpch=NA in two places. I actually wrote this part of the documentation myself at one point, but have now realized that pch=NA and pch=" " are not the same: x <- split(rlnorm(26e4), letters) ## NA generates small file

Dear list, I have spotted what could be a memory leak somewhere. The example below shows how to quickly use up RAM on a linux machine (the example is taylored for a 2Gb machine, change the size of the matrix m is needed). # --- m <- matrix(rnorm(130), nrow=6000, 6) X11(type="cairo") pairs(m) # --- here the trouble starts (monitor the memory usage as the plot goes). pairs(m,

Dear R-Devel, consider : ### x <- round(rnorm(50)) stripchart(x, pch = 21, col = "black", bg = "pink", method = "jitter") points(0.5, 1, pch = 21, col = "black", bg = "pink", cex = 2) ### Under R 2.9.0 the internal color of the single point produced by points() was honored but not the color of the points produced by stripchart(). My wish is

In the documentation for graphics::legend(), the entry for "pch" is: > pch: the plotting symbols appearing in the legend, either as vector of 1-character strings, or one (multi character) string. _Must_ be specified for symbol drawing. If I did not misread them, examples in the same documentation page suggest that it is also possible to pass integers.

> On Aug 24, 2016, at 5:59 PM, Gregory Werbin <greg.werbin at libertymail.net> wrote: > > I did a search on Bugzilla for "plot.ts" and didn't find anything on this issue. I tried to sign up for Bugzilla to report it, but my e-mail address didn't pass your "syntax checking" for a legal e-mail address. > > The bug is easily reproducible on my

Wolfgang Viechtbauer wrote: > Hello R-Helpers, > > plot(x, y, type="b", pch="1") > > plots x vs. y with both a line and the symbol "1" but how do I change > the "spacing" of the symbol being plotted. In other words, I don't want > to plot the "1" at every data point, but only at every kth point (things > get too

Dear friends - using windows xp and R1.6.1 when doing x <- 12 as.character(x) [1] "12" plot(1,2,pch=as.character(x)) the interesting point is marked with: 1 whereas I would like to see 12. In par() is specified under pch: Either an integer specifying a symbol or a single character to be used as the default in plotting points How is that overridden ? Best wishes Troels --------------

Hi mighty R-gurus and other enthusiastics, I just encountered this: library(its) x <- its(sort(rnorm(10)), as.POSIXct(Sys.time() + 1:10)) plot(x, type = "p", pch = c(rep("A", 5), rep("B", 5))) Am I missing something if I expect that all the points labeled as 'A' should be below all those labeled as 'B'? Thanks, Jussi M?kinen platform

R-help, Argument 'pch' in 'plot' can only represent a single character. Is it possible to represent, let's say, two instead? Thanks in advance. I'm running on Windows Xp > version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 0.1

Dear R users, I've been struggling some days with the following problem: I'm interesting in producing the following plot x <- seq(0.01, 10, length = 20) plot(c(0, 10), c(-20, 20), type = "n", xlab = "x", ylab = expression(2 * alpha * log(x))) pch. <- rep(NA, length(x)) for(i in 1:4){ pch.[7] <- as.character(i) lines(x, 2 * i * log(x), type

Hi is it possible to specify the shape of the point to be used in ggplot (as with pch in plot)? I couldn't find anything in the help. Thanks Rainer -- Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation Biology (UCT) Department of Conservation Ecology and Entomology University of Stellenbosch Matieland 7602 South Africa Tel: +27 - (0)72 808 2975 (w) Fax: +27 - (0)86 516 2782 Fax: