R help - Feb 2008 - svm questions

Hi :
   
      I have several puzzling questions about R package "e1071" , svm(
) function:
   
  1: what is the model output about "model$coefs", is it 
(alfa(i)*y(i) )????
       and "model$rho"  ? is it "- b"????
   
  2: if I want to know w , is it  model$SV * model$coefs ?
   
  3: if I just want to use kernel="linear", how the output"
C" and "gamma " come out? for example:
   
   

       
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