The market for used iPhones

This beanplot shows the distribution of prices for which used 32GB 3GS iPhones were sold on eBay. A beanplot shows "a density trace, which is mirrored to form a polygon shape." Overlaid is "a one-dimensional scatter plot show[ing] all the individual measurements." When two phones were sold for the same price, the line is twice as wide, and so on.

Here's the R code that produced the plot

price_and_shipping=read.table("iphoneListingsPricesOnly.txt")
allprices= price_and_shipping
$V1+ price_and_shipping$V2
allprices=sort(allprices)
outlierCount=round(length(allprices)*.05,0)
prices=allprices[(outlierCount+1):(length(allprices)-outlierCount)]
library(beanplot)
png(filename = "priceDistribution.png")
beanplot(prices,method="stack",axes=TRUE,what=c(0,1,0,1),log="",main="Beanplot distribution of prices")
dev.off()

code formatting kludged together from output from Pretty R at inside-R.org -- i had to hack at it to get it to work on blogspot, and that made it uglier than it should be. normally they make (as per the name) pretty stuff.