I would like help understanding why a survival regression with no censored
data-points does not give the same variance estimates as a linear model
(see code below).
I think it must be something to do with the fact that the variance is an
actual parameter in the survival version via the log(scale),
Have just checked with R 3.2.0 and MASS 7.3-40 and there still appears to
be a problem/strangeness at around k=2.5
On 23 April 2015 at 14:09, Francis Bursa
wrote:
> Dear all,
>
> I believe I have found a bug in rlm in the MASS package. Specifically, the
> scale estimate can be wrong when there
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