I'm a fairly new user of R and I'm confronted with a problem to which I can't find the solution in any R manual or FAQ.

I'd like to plot multiple 'graphs' in one plot screen. For example, my data frame would be:

x     a      b      c
1    11    15    18
2    26    12    19
3    22    17    14

And I'd like to plot a, b and c against x at the same time in one plot screen.

How is this done?

Thanks!

Robert Weenink



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