[R] Histogram/BoxPlot Panel

[baptiste auguie]

Hi,

Here is some artificial data followed by minimal ggplot2 and lattice examples,

makeUpData <- function(){
  data.frame(x=sample(letters[1:4], 100, repl=TRUE), y=rnorm(100))
  }

datasets <- replicate(15, makeUpData(), simplify=FALSE)
names(datasets) <- paste("dataset", seq_along(datasets), sep="")

str(datasets)

require(reshape)
## combine the datasets in one long format data.frame
m <- melt(datasets, meas=c("y"))

str(m)

require(ggplot2)

ggplot(m)+
  geom_boxplot(mapping=aes(x, value))+
  facet_wrap(~L1)

# or more concisely
qplot(x, value, data=m, geom="boxplot", facets=~L1)

require(lattice)

bwplot(value~x | L1, data=m)

HTH,

baptiste

2009/12/29 Lorenzo Isella <lorenzo.isella at gmail.com>:
> Dear All,
> I am given 15 different data sets and I would like to generate a panel
> showing all of them.
> Each dataset will be presented either as a boxplot or as a histogram.
> There are several possible ways to achieve this (as far as I know)
>
> (1) using plot and mfrow()
> (2) using lattice
> (3) using ggplot/ggplot2
>
> I am not very experienced (to be euphemistic) about (2) and (3).
> My question then is: how would you try to organize these 15
> histograms/boxplots  into a single figure?
> Can anyone provide me with a simple example (with artificial data) for
> (2) and (3) (or point me to some targeted online resource)?
> Any suggestion is welcome.
> Many thanks
>
> Lorenzo
>
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