
Dear All,

I have a data set with the following structure:

[A], [a], [B], [b]

where [A] and [B] are measurements and [a] and [b] are the associated  
uncertainties. I produce [B]/[A] vs. [A] plots in R and would like to  
show uncertainties  as error ellipses (rather than error bars). Would  
this be relatively easy to do in R?

I would appreciate any help on this
Thanks a lot

Tibi





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