For Q2 you can use opts(legend.position = c(0.9, 0.9)). For Q3, you can also use scale_y_sqrt().
Hadley On Wed, Mar 10, 2010 at 2:05 PM, Tim Howard <tghow...@gw.dec.state.ny.us> wrote: > To answer two of my own questions to get them into the archives (I am slowly > getting the hang of ggplot): > > Q1. use "opts(axis.text.x = theme_text(size=xx))" to change font size of the > bar labels: > > library(ggplot2) > set.seed(5) > dat <- sample(1:8,100,replace=TRUE) > smp <- ggplot(data.frame(dat), aes(x=factor(dat),fill=factor(dat))) + > geom_bar(width=1) + > opts(axis.text.x = > theme_text(size = 18)) > smp + coord_polar() > > Q3. calculate the frequencies themselves and use stat="identity" inside the > aes call: > > L <- table(dat) > L.df <- data.frame(L) > L.df <- cbind(L.df, "SQRrelFreq" = sqrt(L.df[,2]/sum(L.df[,2]))) > smp2 <- ggplot(L.df, aes(x=dat,y=SQRrelFreq, stat="identity", fill=dat)) + > geom_bar(width=1) + > opts(axis.text.x = > theme_text(size = 18)) > smp2 + coord_polar() > > Cheers, > Tim > >>>> Tim Howard 3/9/2010 9:25 AM >>> > Dear R gurus - > > consider this plot: > > library(ggplot2) > dat <- sample(1:8,100,replace=TRUE) > smp <- ggplot(data.frame(dat), aes(x=factor(dat),fill=factor(dat))) + > geom_bar(width=1) > smp + coord_polar() > > > Q1. How do I change the font size and weight of bar labels (1,2,3...)? I've > been wallowing in the 'Themes' structure and I just can't figure out the > correct place to change the definitions. Along these same lines, what does > 'strip' mean when referring to strip text? > > Q2. How can I move the legend defining bar height into the plot, so that it > overlays the lines they refer to? > > > Consider the same figure using Circstats: > > library(CircStats) > dat.rad <- (dat*((2*pi)/8)) -(2*pi)/16 > rose.diag(dat.rad, bins = 8) #note the origin is to the right rather than on > top > > Q3. The key difference is that CircStats uses an area-based calculation for > the size of each slice, which makes for a different presentation than > ggplot2. Any suggestions on how to use this calculation method in the ggplot > framework? > > Thanks in advance for your help. > Tim Howard > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/ ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
