Software for Empirical Likelihood
the R package: emplik and The book

The package emplik includes over 30 functions, to be used with software R.
It can handle censored or uncensored data. It has functions to carry out Empirical Likelihood analysis for one sample,
two sample or AFT regression models. Parameter can be defined via CDF or hazard function.

The software can be downloaded from here or the official R site: CRAN

These are standard R release ***.tar.gz files  and some have binary ***.zip if available
Version 0.1-2   (10KB released 11/15/2001)
Version 0.2-1   (15KB released 1/10/2002)
Version 0.3       (15KB  released 2/18/2002)
Version 0.4       (15KB  released 4/6/2002)
Version 0.5       (16KB  released 4/24/2002)
Version 0.6       (18KB  released 5/13/2002)
Version 0.7       (21KB  released 12/1/2002)
Version 0.8       (26KB  released 3/18/2004)
Version 0.9       (28KB  released 4/15/2005)
Version 0.9-3    (35KB  released  8/31/2006)
Version 0.9-4    (41KB  released 4/4/2008)
Version 0.9-5    (43KB  released 12/6/2008)
Version 0.9-6    (50KB  released 10/23/2010)
Version 0.9-7    (58KB  released 10/08/2011)    (built with R 2.10.1)
Version 0.9-8    (57KB released 04/29/2012)
Version 0.9-8-1  (57KB released 05/01/2012)
Version 0.9-8-2  (57KB released 05/02/2012)  
Version 0.9-9    (183k  released 10/11/2013) 
  (built with R 2.15.0)
Version 0.9-9-2  (183k released 3/7/2014)
Version 0.9-9-5  (186k released 8/13/2014)  This version has identical functions as version 0.9-9-2 except the speed up of el.cen.EM2 and el.cen.EM by some C code.
Version 1.0   (Released March 10, 2015)  This version does not contain C code.
Version 1.0-2 (Released Aug. 2015)

Examples of Using the emplik Package:

There are lots of example of using emplik package in the New Book below.
Here are some more examples of how to use the functions inside emplik

Several more examples ,   Some Example R code from the book

Book with many more examples

New Package ELYP: (for the empirical likelihood analysis of Cox model, Yang and Prentice model)

ELYP version 0.3  (source code)     and the zip file, for window 32bit (R 2.15.0)
ELYP version 0.5-1  (source code)   and the zip file (for R2.15.1  32bit)
ELYP version 0.6-1  (source code)   (released 10/02/2013)
ELYP version 0.6-3  (source code)   (released 11/25/2013)  
ELYP version 0.6-4  (source code)   (29KB released 12/1/2013)
ELYP version 0.6-6  (sourcecode)   released 5/14/2014
ELYP version 0.6-7  (source code)  (released 5/28/2014)
ELYP version 0.6-8  (source code)
ELYP version 0.7  (released April 2015)
ELYP version 0.7-3  (released Aug. 2015)
Since version 0.7-2, ELYP is also available on CRAN.

The package emplik2  is for empirical likelihood tests in a 2-sample setting. It is written by Bill Barton.
You have to download it from CRAN. It can test the hypothesis
 Ho:  E_{x, y} g(x, y) = \mu   This include Mann-Whitney-Wilcoxon test, or Aera Under Curve
for ROC curve.  For simple two sample test of   \int g_1(t) d \Lambda_1(t) - \int g_2(t) d \Lambda_2(t) =0
you may use the package emplik.