[R] Tobit analysis

[Andrew Barnes]

Having read previous correspondance on this topic, am I right in using a 
gaussian distribution for a tobit model, one article suggests a normal distribution?

Also, I want to censure at the upper bound, so, using the survival5 package I use:

survreg(Surv(y,y<c,type="right")~x) for a censored regression.

Could anybody who's had experience of this, confirm whether I'm in the ballpark?

Grateful thanks
Andrew Barnes
=======================================
Dr Andrew Barnes
Agricultural Management Economist

Modelling and Strategy Group
Land Economy Research Department
Research Division
SAC
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Edinburgh
EH9 3JG

Tel: 0131 535 4042    E.Mail:  A.Barnes at ed.sac.ac.uk
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Website: http://www.sac.ac.uk/management/external/default.htm