I'd like to create a geom_path() that has arrows pointing towards the next location in the path. I can get the path to plot, without issue, for example: df <- (x=1:12, y=20:31, z=1:12) p <- ggplot(df, aes(x=x, y=y)) p + geom_point() + geom_path() Now what I'd like to be able to do is plot that point arrows from one element in the p...
I'd like to know how to make it so that x and y, in the following example data set are plotted on the vertical axis for each element of frame in the horizontal axis. How do I do this with ggplot2? x, y = variables, frame = YYYYMM Example Data: df <- structure(list(x = c(0.000892333625290767, 0.0161153931761482, 0.0188150880795816, 0...
Hello, I've been learning ggplot in the last few weeks. Generally, I'm getting things done (slowly though), but now I'm stuck. I created the following facetted plot: http://dl.dropbox.com/u/7752237/example_bad_y_scales.pdf Faceting is done by pl <- pl + facet_wrap(~sci_name,ncol=1,scale="free") The Problem: Numbers on the y-scale d...
I'm wondering if the following is possible. I have a survey with 100+ questions, all categorical, collected in 4 locations. All questions are labeled q1, q2 and so on. Let's say there are 100 for simplicity. I can visually compare the results of a particular question across locations with: library (lattice); histogram(~ q75 | location...
There is lots of cheat sheets for R. Is there a cheat sheet for ggplot2? ...
I have a bunch of histograms to plot on data that is still coming. As the sample sizes vary, in order to compare them I need to plot the histograms with percentages not counts. qplot (field, data=mydata, geom="histogram", binwidth=10) the above qplot displays the counts. The density option is not applicable as it divides the counts wi...
Say, I am using facet_grid() in ggplot2 to obtain 2 histograms. Now I want to superimpose these histograms with Poisson curves (having different means for the 2 histogram plots/grids) and a second curve of another distribution (for which I want to manually provide the probability function of values). How can this be done? constructing ...
I would like to change the stacking order of hospitals in the diagram below so #1 is at the top and #4 at the bottom. The diagram was produced with ggplot(survey,aes(x=hospital, y=age))+geom_boxplot()+coord_flip()+xlab("")+ylab ("\nPatient Age") and I need the top->down order to be the reverse of what is now. I'm not sure why it com...
I want to added dark/light phase information to the background of my stacked area graphset to highlight the how light affects the shapes of the curves. My dataframe looks like this: > str(MDist.median) 'data.frame': 2880 obs. of 6 variables: $ groupname: Factor w/ 8 levels "rowA","rowB",..: 1 1 1 1 1 1 1 1 1 1 ... $ fCycle : Fact...
I have used the following ggplot command: ggplot(survey,aes(x=age))+stat_bin(aes(n=nrow(h3),y=..count../n), binwidth=10) +scale_y_continuous(formatter = "percent", breaks=c(0, 0.1, 0.2)) + facet_grid(hospital ~ .) + opts(panel.background = theme_blank()) to produce I'd like to change the facet labels, however, to something...
I wonder if it's possible to slice a graph respectively a .png file generated with ggsave. If I do not want to use the default legend ort title and set it to FALSE it leaves me with a lot of white space. So is there an R way to just cut the file several pixels above and below the graph itself? Thx in advance! ...
I have time series data (I've posted it here as a data.frame): x <- structure(list(date = structure(c(1264572000, 1266202800, 1277362800, 1277456400, 1277859600, 1278032400, 1260370800, 1260892800, 1262624400, 1262707200), class = c("POSIXt", "POSIXct"), tzone = ""), data = c(-0.00183760994446658, 0.00089738603087497, 0.0004235135983...
I generate a QQ plot to compare the distribution of my ranom number generator with a beta distribution. I can do this using the usual plot commands in R via samples1 <- read.csv("test1-clean.dat") qqplot( samples1$p0, qbeta(seq(0,1,length=length(samples1$p0)),1,3) ) abline( 0, 1 ) but I want to use the ggplot2 library, and I just can...
i am using rpy2-2.0.7 (i need this to work with windows 7, and compiling the binaries for the newer rpy2 versions is a mess) to push a two-column dataframe into r, create a few layers in ggplot2, and output the image into a <.png>. i have wasted countless hours fidgeting around with the syntax; i did manage to output the files i neede...
The following code works well: p <- ggplot(df,aes(x=x,y=y)) p <- p + geom_tile(aes(fill=z)) p It plots a nice heatmap. Here df contains x and y, created using expand.grid(), and z which contains the value at each (x,y) co-ordinate. This code, on the other hand p <- ggplot(df,aes(x=x,y=y)) p <- p + coord_map(project="lagrange") p <- ...
I've recently installed the latest version of ggplot, by downloading the source from CRAN and then running install.packages("/path/to/ggplot2_0.8.8.tar.gz", repos = NULL, type="source") Now, running the first example from geom_tile()'s documentation on the ggplot2 website: library('ggplot2') pp <- function (n,r=4) { x <- seq(-r...
I have a list of matrices I wish to plot. Each element in the list ultimately represents a facet to be plotted. Each matrix element has dimensions Row * Col, where all values in a row are grouped and plotted as a scatterplot (i.e. X-axis is categorical for the row names, Y-axis is the value, Col. values per row). Additionally, I would...
I am trying to produce some example graphics using ggplot2, and one of the examples I picked was the birthday problem, here using code 'borrowed' from a Revolution computing presentation at Oscon. birthday<-function(n){ ntests<-1000 pop<-1:365 anydup<-function(i){ any(duplicated(sample(pop,n,replace=TRUE))) }...
I'm looking for an easier way to draw the cumulative distribution line in ggplot. I have some data whose histogram I can immediately display with qplot (mydata, binwidth=1); I found a way to do it at http://www.r-tutor.com/elementary-statistics/quantitative-data/cumulative-frequency-graph but it involves several steps and when explor...
Dear all, I am trying to create facet grid with the following code p <- ggplot(melted,aes(factor(country))) + geom_bar() +opts(axis.text.x = theme_text(angle = 90,hjust = 1)) p + facet_grid(. ~ provider) but I always get the following error: Error in sub("^[^:]+: ([^\n]+)\n[0-9]+:(.*)$", "\1\2", expr) : input string 1 is in...