[R] (no subject)

[Jim Lemon]

Hi Said,
Try this:

# some data please, maestro
fatdat<-data.frame(age=sample(12:50,100,TRUE),BMI=runif(100,12,40))
# get your graphic device going
png("fatplots.png",width=800,height=800)
# get a 2x2 division of the device space
par(mfrow=c(2,2))
# start plotting
plot(age~BMI,data=fatdat)
hist(fatdat$BMI)
plot(sort(fatdat$BMI),type="l")
fatdat$agecat<-cut(fatdat$age,breaks=c(10,20,30,40,50))
barplot(by(fatdat$BMI,fatdat$agecat,FUN=mean))
dev.off()

Jim


On Fri, Jul 24, 2015 at 10:05 PM, Said Filahi <sa.filahi at gmail.com> wrote:
> hello
>
> i'm trying to plot multiple image (.png) and plot as a single image using
> mfrow().
>
> i have already image1.png  image2.png image.png image4.png and a can't plot
> them in single fig1.png?
>
>
> thank you
>
>
> Said FILAHI
>
> morocco
>
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