[R] Add a rectangle behind a plot

[Judith Flores]

Hi there,

   I found one reference to add a reactangle behind a
plot using plot(...,add=T), I tried this but didn't
obtain the desired result.

If a I have the following code:

plot(x,y)
rect(xleft, ybottom, xright,ytop,col='green)

   The rectangle appear on top of the plot.

Any help will be greatly appreciated,

Judith

 


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