[R] x-axis annotation

array chip
2010-08-09T19:14:16Z

Hi, I have a simple plot by plot(x,y, log='xy'). However, due to the
large range
of values of x, the x-axis annotation is printed as "2e+02  1e+03  5e+03
2e+04
1e+05" instead of "200  1000   5000 20000   100000". How can I
make it printed
as in the later one?

Thanks

John