[R] Meaning of pterms in survreg object?

[Terry Therneau]

I'm having a hard time fathoming your question, since "pterms" appears
nowhere in my source code to residuals.survreg.  Can we start at the
beginning, per the posting guide?

 1. What version of R are you running?
 2. What exactly are the statements you typed which give the message?

Note that residuals are not saved in a fit, but are computed later.
  fit <- survreg(Surv(time, status) ~ age + height, data=mydata)
  resid(fit, type='response')

Terry Therneau

--- begin included message --------
Residual and predict methods are not carried out on the
survreg                                                                        
object, although the component linear.predictors exists for
the                                                                        
survreg object. Looking at the code I see that the residual
method                                                                     
refuses to run if any of the components of the pterms vector
is                                                                        
equal to
2.                                                                                                                            
--- end inclusion ---