similar to: ggplot2 customizing

Hi, I can get from a string to a function with this name: >f1 <- function(x){ mean(x) } >do.call("f1",list{1:4}) >get("f1") etc... But how do I get from a function to its name? >funcVec <- c(f1,median) >funcVec [[1]] function(x){ mean(x) } > str(funcVec) List of 2 $ :function (x) ..- attr(*, "source")= chr "function(x){ mean(x)

Hi, suppose I have a matrix (or dataframe) as a result from subsetting. mat <- matrix(1:20,ncol=2) mat[c(3,6,9),] <- NA cc <- complete.cases(mat) sub <- mat[cc,,drop=FALSE] sub <- sub * 2 #some caluculations with sub. now I would like to expand sub somehow so row 3,6, and 9 would be filled with NAs but the rest should be in place again. Is there a simple function for this?

Hi, does anybody know of a templating library for R, like velocity or freemarker? It doesn't have to be very fancy just a bit better than sub in replacing tags in a text (not necessarily html) file. thank you very much for your answer. Ido

Dear All, I would like to know why $ was deprecated for atomic vectors and what I can use instead. I got used to the following idiom for working with data frames: df <- data.frame(start=1:5,end=10:6) apply(df,1,function(row){ return(row$start + row$end) }) I have a data.frame with named columns and use each row to do something. I would like the named index ($) because the column position in

ggplot2 ------------------------------------------------------------ ggplot2 is a plotting system for R, based on the grammar of graphics, which tries to take the good parts of base and lattice graphics and avoid bad parts. It takes care of many of the fiddly details that make plotting a hassle (like drawing legends) as well as providing a powerful model of graphics that makes it easy to produce

ggplot2 ------------------------------------------------------------ ggplot2 is a plotting system for R, based on the grammar of graphics, which tries to take the good parts of base and lattice graphics and avoid bad parts. It takes care of many of the fiddly details that make plotting a hassle (like drawing legends) as well as providing a powerful model of graphics that makes it easy to produce

Hi, I don't know if I am the first one to report the problem: in 2.8.0 dev2bitmap gained aa support, but "extra" is null if neither taa nor naa is specified. > dev2bitmap("plot.pdf",type="pdfwrite") Error in paste(shQuote(gsexe), " -dNOPAUSE -dBATCH -q -sDEVICE=", type, : object "extra" not found >

Hello, I am not sure if I am interfacing with C correctly and _safely_ or if there is a better way esp. with regards to terminating the "returned" array. I am trying to fill an int array with values whose actual size is determined in the C function and is always maximally as large as length(values). I also don't understand the purpose of $ab in the example: conv <- function(a,

Hi, yes a bold statement, but I get different behaviour from 2.6.2 and 2.7.0 in read.table, and I don't find any documentation in http://cran.r-project.org/src/base/NEWS. A file like (space delimited): foo + . bar - . 2.7.0: > tab <- read.table("test.txt",as.is=TRUE) > tab V1 V2 V3 1 foom 0 0 2 bar 0 0 while until now and on 2.6.2 > tab <-

Hi, I directed somebody to install R (2.6.1) on his OSX computer, following instructions from http://cran.r-project.org/bin/macosx. She can run R from the console. But plot(1:10) doesn't produce any output or open a window (as I am used to from linux). More importantly: Rscript is not in the path (minor problem ln -s is hopefully doable). I tried to put a hardcoded path to Rscript into the

Hi, Consider something like > library(ggplot2) > movies$decade <- round_any(movies$year, 10) > m <- qplot(rating,data=movies,colour=factor(decade),geom="density") > m (modified from "?stat_density"). I'd like to add on the line y=0 a dot for the median of each "decade" category (using the same colour coding as the "fill"). I'm

I am trying to specify a legend title to be other than the variable name, but I find that the legend splits because scale_shape() takes effect but scale_colour() does not. Can someone spot my error? Here's some toy code that produces the problem on my system (R2.8.1, windows, today's CRAN package updates): library(ggplot2) a <- sample(letters[1:5],100,replace=T) b <-

Dear all, I do not fully understand how ggplot2 handles NAs. See the following example: library(ggplot2) x <- rnorm(150) g <- as.factor(c(rep(c(0,1,NA),50))) mydf <- data.frame(x,g) m <- ggplot(aes(x = x, group = g, color = g), data = mydf) m + geom_density() How do I get rid of the NAs (i.e. the blue colored curve)? I thought ## m <- ggplot(aes(x = x, group = g, color = g,

Dear all, I am using the code as below   tdm <- melt(matrixToPlot)    p<- ggplot(tdm, aes(x = Var2, y = Var1, fill = factor(value))) +                   labs(x = "Mz", y = "T", fill = "D") +                   geom_raster(alpha=1) +                   scale_fill_discrete(h.start=1) +                   scale_x_continuous(expand = c(0, 0)) +                  

  Thanks again for the hints about adding the vertical line to the hist plot and in ggplot.  That worked great.    Based on that advice I've been flipping through the ggplot2 doc and ggplot-static\index.html webpage more looking for the answer to the next question.    Unfortunately, I haven't stumbled on a description of how to move around the location of the legend.    Here is what I

Hi all, I've this ggplot2 graph (http://www.4shared.com/file/120101043/f3e9350/isotherm.html). I'd like to tweak the legend for the adsorbent part. I'd like to have full square of the colors instead of the full circles. I guess that I've to work on the scale_color_hue or fill somewhere but I haven't found my way yet. Here is my code to get the graph:

Hello, I am trying to add a less than equal to symbol in a ggplot2 legend text. See sample code below. I have tried using the expression function and \u2264. I also tried adding labels to legend.text under theme. Neither of these 3 options work. Please help, Mahesh ++++++++++++++ Extra.column=ifelse(data[,covariate]>cutpoint,1,0) Grp1 <- "\u2264 1.5" Grp2 <-

Dear all, I am using ggplot with geom_tile to print as an image a matrix  I have. My matrix is a squared one of 512*512 cells.  The code that does that is written below > print(v + geom_tile(aes(fill=dB))+ opts(axis.text.x=theme_text(size=20),axis.text.y=theme_text(size=20), axis.title.x=theme_text(size=25) , axis.title.y=theme_text(size=25), legend.title=theme_text(size=25,hjust=-0.4) ,

Dear All, After having overcome the issue of legends (thanks, Thierry, once more), I am trying to use facetting, but here also I can not find how to do this. I do not want to use qplot, but rather the more flexible options. However, it seems I am doing still something pretty stupid, because I always get an error, even if it seems I am doing everything like the examples. My code is below.

ggplot2 =================================== ggplot2 is a plotting system for R, based on the grammar of graphics, which tries to take the good parts of base and lattice graphics and avoid bad parts. It takes care of many of the fiddly details that make plotting a hassle (like drawing legends) as well as providing a powerful model of graphics that makes it easy to produce complex multi-layered