https://github.com/cran/emplik
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Tip revision: e2f16b0adc0f6df124c7ee126345f66d8d2c7961 authored by Mai Zhou on 09 October 2011, 00:00 UTC
version 0.9-7
Tip revision: e2f16b0
README
This package is based on R code el.cen.EM, el.cen.EM2,
el.trun.test emplikH1, emplikH2, emplikdisc.test and 
el.cen.test, etc. written by Mai Zhou. 
The code el.test is ported from S code ELM() by Art Owen. 

el.test() can handle vector means as Ho (several
mean parameters), but data must be uncensored. 
When dealing with censored data, use el.cen.EM2() to handle 
vector means.

Many other code in this package can only handle one parameter in Ho.
But that parameter can be mean/hazard/quantile, and the
function can also take censored/truncated data as inputs.
 
The name convention: el.xxx    is for the parameter of mean(s).
                     emplikxxx is for the parameter of hazard(s).

Everything is written in R, so porting to Splus should be
easy. I may put out another version that move some of the
loops to C function, but never found enough incentive to do so. 
(The current code seems fast enough, is there such need?)
This will also make S porting harder.

Release History: 
Pre-beta           1998--1999
Version 0.1-2   Nov. 12, 2001
Version 0.2-1   Jan. 10, 2002
Version 0.3     Feb. 18, 2002
Version 0.4     Apr. 6,  2002
Version 0.5     Apr. 24, 2002
Version 0.5-1   Apr. 25, 2002
Version 0.6     May  13, 2002
Version 0.7     Oct. 12, 2002
Version 0.7-3   Jan. 12, 2003
Version 0.7-4   July 20, 2003
Version 0.8     March 18, 2004
Version 0.8-1   June 14, 2004
Version 0.8-2   Sept. 10, 2004
Version 0.8-3   March 24, 2005
Version 0.8-4   March 25, 2005
Version 0.9     April 15, 2005
Version 0.9-1   April 24, 2005
Version 0.9-2   Oct. 9,  2005
Version 0.9-3   Aug.     2006


To do list: 10/9/2005  
The iteration in the el.cen.EM2(), el.test(),
el.test.wt2() etc.
could speed up with solve(A,b) instead of finding the
full inverse matrix by svd and compute A{-1}*b . 
See emplikH2.test2() for an example.
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