[R] Plotting two ecdf curves on same axes

Jane McFerren jane.mcferren at lycos.co.uk
Tue Oct 15 17:30:17 CEST 2002

Dear R listers

Could somebody please advise me how to draw two empirical cumulative distribution 
functions on the same set of axes?

I know I should be using the ecdf command but I'm not sure what to add to it to force it 
to plot twice on the axes

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