similar to: expression() help

Hi All, I'm trying to get following but not successfully: # this works okay ylab=expression("PM2.5 Concentration ("*mu*g/m^3*")") # But I need "2.5" as a subscript to PM and below this an additional line saying some text, like. ylab=expression("PM[2.5] Concentration ("*mu*g/m^3*")"\n(random text in brackets)) Square brackets doesn't

I HAVE BEEN ASKED TO BE REMOVED FROM THIS LIST OVER 20 TIMES, PLEASE CAN I BE REMOVED!!!!!!!!!!!!! --- On Thu, 3/12/09, Peng Cai <pengcaimaillist@gmail.com> wrote: From: Peng Cai <pengcaimaillist@gmail.com> Subject: Re: [R] Help: barchart() {Lattice} To: "Felix Andrews" <felix@nfrac.org> Cc: r-help@r-project.org Received: Thursday, 3 December, 2009, 10:17 AM Got it

Hi All, I'm trying to write "ug/m3" as y-label, with greek letter "mu" replacing "u" AND "3" going as a power. These commands works in general: plot.new() text(0.5, 0.5, expression(symbol("m"))) But, I'm sure about how to do it using barchart() from "Lattice". Can anyone help please? Thanks, Peng Cai [[alternative HTML

Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up "value" column by State*Month and by State*Month*Year. Also, I

Hi R Users, I am using following R code to plot a "grouped boxplot". I'm hoping if I can add MEAN to these boxplots. Data is copied below and attached as text file. install.packages("ggplot2") library(ggplot2) dta<-read.table("Sample.txt",header=T) attach(dta) p <- ggplot(dta, aes(factor(month), nail)) p + geom_boxplot(aes(fill = factor(trt))) Data: month

Hi R Users, I'm trying to plot a stacked barplot. Here is data: Sample Col1 Col2 Col3 Row1 -2 4 -1 Row2 3 -2 4 Row3 3 5 -2 Row4 4 1 -1 I'm using following R code: library(lattice) dta<-read.table("data.txt", header=TRUE, row.names="Sample") barchart(data.matrix(dta), horizontal=FALSE, stack=TRUE, col=2:4,

Hi R Users, I'm using following data/code (data is attached also) to produce a stacked barplot. # Sample Data: Names Col1 Col2 Col3 Row1 -20 40 -10 Row2 30 -20 40 Row3 30 10 -20 Row4 20 20 -10 # R Code: dta<-read.table("data.txt", header=TRUE, row.names="Names") barchart(data.matrix(dta), horizontal=FALSE, stack=TRUE, par.settings = simpleTheme(col =

Hi All, I'm trying to plot boxplot graph. I tried barchart with "groups=" option and it worked fine. But when I try to generate same kind of graph using bwplot(), "groups=" option doesn't seem to work. Though this works, yield ~ variety | site * year I'm thinking why "groups=" doesn't work in this case, can anyone help please... #Code:

I have written a function to plot data which will be used for various different chemistries. A simplified version is: plot_data <- function(risk,levels,chem,sd2,measure){ plot(risk, levels,main=paste ("per", sd2, measure, "\n in usual", chem)) } The problem is with the title. This works fine if the variable "chem" is just text, but if it is an expression then

Hi All, I need some help with adding text at the bottom of the graph (outside of default outline of graph). Say, I need to write "Month: 01 04" below each of the two years in the following R code, something like this: _______________ | | | Plot | |___ __________| 1931 1932

Hello, I've been trying to plot a subscript in a text formula using plotmath but I haven't been able to do so. In my example below I would like the text label to show X[min] = 10.1 +/- 5.5 Here is the code: ll <- c(x=10.1, sde=5.5) plot(1:10) text(x=9, y=2, pos=2, expression(paste(X[min], "=", paste(ll, collapse="+/-")))) This works fine up to the inner paste

Hi All, I'm familiar with bwplot() in lattice package. Is it possible to get such a boxplot using lattice package: http://www.reading.ac.uk/ssc/publications/graphics/mma-fig1.gif instead of the following default: http://media.wiley.com/wires/WICS/WICS22/mfig005.gif My aim is to get a compact boxplot for publication. Having legend can help because otherwise x-axis labels are repeated for

Hi R Users, I'm using following data/code (data is also attached) to produce a stacked barplot. *I need help with changing legend boxes, currently I'm using "rectangles=TRUE". Is it possible to get small squares instead -- may be with a small gap between colored squares.* Currently there is no gap between the colored rectangles. # Sample Data: Names Col1 Col2 Col3 Row1 -20 40

Hi, I can use the following code to generate a matrix, each column of which is 'x'. But I have to specify '5' twice in the second command. I am wondering if there is a better way to do it. > x=1:10 > matrix(rep(x,5),nc=5) > t(matrix(rep(x,5),nc=5)) Regards, Peng

Hi, Besides calling shell command mkdir by system(), I'm wondering if there is a buildin command in R to make a new directory. Regards, Peng

Probably a very simple problem: I want to annotate a plot axis with a name of my data using expression(). The name for the data is $\hat P4_k$ written in LaTex style -> hat symbol above P, followed by a 4 and a subscripted k index I tried to write this using x<-c(1,2,3,4) y<-c(3,5,7,9) plot(x,y,xlab=expression(hat(P4[k])) ) but cant find a way to force the hat

Hi, Suppose 'x' is a vector of length n and 'y' is a vector of length m, I am wondering what the time complexity of 'match(x,y)' is. Is it n times m? Regards, Peng

Hello, I'd like to add labels to my plot that include a male or female symbol as subscript. I'm working in Windows Vista and R 3.0.0. I am able to add the male symbol to the plot as regular text (NOT as subscript), e.g. with: mtext("Male\u2642") This displays the word "Male" followed by the male symbol on the plot. But "\u2642" does not work when I try to

Hi, See the code below. 'x' is a frame. x$C1 are all numbers 1, 2 and 3. 'as.matrix(x)' convert x$C1 to strings "1", "2" and "3". I'm wondering how to maintain that the first column of 'as.matrix(x)' still numbers. Regards, Peng $ cat read.csv "C1","C2" "1","x" "2","y"

hi all i am having a problem with the expression/paste command say we estimate a variable, named PHI it contains the value of say 2 and we want to display this value as " hat(phi) = PHI" onto a graphic i.e. " hat(phi)=2 " how does one do this? i've tried the following: 1. legend(-5,.3,expression(hat(phi)*"="*PHI)) 2.