[R] Polygon

Komine momadou at yahoo.fr
Mon Dec 12 15:58:56 CET 2011

Hi everybody,
I have a matrix with 3 columns (Date, MeanArea and SdArea). I want to draw a
figure showing the variable MeanArea in terms of the Date. But instead to
use the variable SdArea as bar error, I want to use “polygon error”. I use
this code but the output does not seem good. 
y <-MeanArea 
x <-SdArea 
z <-Date 

Thank you in advance  

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