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2 results for “from:Richard Perry”

Variance estimates for survreg vs. lm
Richard Perry · Jul 3, 2015 · r-help

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...

Possible bug in rlm
Richard Perry · Apr 24, 2015 · r-help

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 <Francis.Bursa at quantics...

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