plot with different axes scale

[marcelo]

Dear Mr/Mrs octave users

I'm newbie to octave, but i'm grateful to be using this
free software!
my question is about plotting data with different scales...
like 
x=rand(100,1)
y1=10.*x
y2=100.*x
mplot() #using left axes with same scale
plot()#just plot x and y1

so, i just plot to left axes with range(0:1) and right axes with 
range(10:100)
Is there some function or script to do this??
Thanks a lot for any help
sorry for my poor english!!
-- 
Marcelo Alexandre Bruno - Pos-graduacao Oceanografia Biologica
Departamento de Oceanografia -  Laboratorio de Ecologia do Ictioplancton
(0xx53) 2336529 - Rio Grande - RS - BRAZIL



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