View logo_add.r
library(png)
library(RCurl)
#I got these free png silhouettes of red fox and rabbit from phylopic.org
foxurl<-"http://phylopic.org/assets/images/submissions/51b1b6e4-129d-41a6-bbbd-c3fab459c25f.1024.png"
raburl<-"http://phylopic.org/assets/images/submissions/1e15411c-5394-4a9d-a209-76c8ac0c331d.1024.png"
fox_logo <- readPNG(getURLContent(foxurl))
rab_logo <- readPNG(getURLContent(raburl))
#utility function for embedding png images at specified fractional sizes in R plots
#places the logo centred on a specified fraction of the the usr space,