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[S] MLE's with censored data

To: s-news@wubios.wustl.edu
Subject: [S] MLE's with censored data
From: whitman@lexmark.com
Date: Thu, 16 Jul 1998 15:54:19 -0400
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I am having a problem trying to get MLE's for a single population of life
data with some censored observations.  It seems the gui portion of S+ 4.5
requires two populations to do any caluclations at all.  After it has
finished, it is not clear where the parameter estimates are located in the
report screen.  If I try to enter only one population, I get an error that
my design matrix is collinear.  Does anyone know how get the parameter
estimates for a given distribution?

Thanks,

Charlie Whitman


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