[R] how to generate this simulation dataset in R

From: zhijie zhang <epistat_at_gmail.com>
Date: Mon 07 Aug 2006 - 12:54:13 EST


Dear Rusers,
  I want to compare the different methods of variable selction in linear/logistic regression, so i want to generate simulated datasets, how to do that?
e.g.
 response variable:y
independent variables:x1-x4
residual item:e
the theoretical formula is: y=2.1+0.1*x1+0.2*x2 x3,x4 are not related with y
How should i do that?
Thanks very much!
!!SOS!!

-- 
Kind Regards,
Zhi Jie,Zhang

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Received on Mon Aug 07 12:59:03 2006

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