[R] legend at fixed distance form the bottom

[Christophe Genolini]

Lol.
To me, a "fixed amount" that depends on the size of the graph is not 
much fixed...

--- 8< ---

symboles <- c(3,4,5,6)
dn <- rbind(matrix(rnorm(20),,5),matrix(rnorm(20,2),,5))
listSymboles <- rep(symboles,each=2)

layout(matrix(c(1,1,1,2,2,3),3))
for(i in 1:3){
  plot(dn)
  legend("top", pch = unique(listSymboles), legend = c("a", "b","c","d"),inset = c(0,1.1), horiz = TRUE, xpd = NA)
}

--- 8< ---
On this example, it is easy to see that index is at a fixed distance 
from the bottom but that Legend is at a distance "porportional"


>> I would like to add a legend under a graph but at a fixed distance from the graphe"
>>     
>
> The top of the legend is always a fixed amount below the graph (which is
> what you asked for).
>
>