[R] Plot from a jpeg

[Uwe Ligges]

On 27.11.2012 22:38, bgnumis wrote:
> Hi all,
>
> I know that I can for instance draw to plots in one using
>
> nf<-layout(matrix(c(1,2),1,2,byrow=FALSE))
>
> Imagine I have 3 files:
>
> plot1.jpeg
> plot2.jpeg
> plot3.jpeg
>
> Anyone knows if I can read them and put on one colum and three rows reading
> directly from the jpeg file?


Yes, there are many packages around,

One idea:

download.file("http://www.user2007.org/photos/r-cake.jpg", jpfile <- 
tempfile(), mode="wb")
library("ReadImages")
jp <- read.jpeg(jpfile)
par(mfrow=c(3,1))
plot(jp)
plot(jp)
plot(jp)


Best,
Uwe Ligges




> Many Thanks
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at 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.
>