2021-10-07 Stephane Germain  <stephane@psychometricon.net>

	* Add the frequencies table to the classical test theory statistics output

	* Now using libirt 1.4.1

	* version 1.4.1

2021-09-07  Stephane Germain  <stephane@psychometricon.net>

	* Now using libirt 1.4.0

	* version 1.4.0

2018-08-29 Stephane Germain  <germste@gmail.com>

	* Using libirt 1.3.1 (Compiled for windows with gsl 2.5)
	
	* Windows package compiled for R 3.5 64 bits in addition of 32 bits
	
	* version 1.3.1

2013-02-21 Stephane Germain  <germste@gmail.com>

	*  Now using libirt 1.2.0

	* Added the biserial/polyserial correlations in the "CTT" output

	* Added nice printing of the CTT statistics

	* version 1.2.0

2012-06-13 Stephane Germain  <germste@gmail.com>

	*  Now using libirt 1.0.3

	* version 1.1.7

2011-09-13  Stephane Germain  <germste@gmail.com>

	* In irt_wrapper.c add a small difference for each options weights
	when initializing the parameters in case all the weight are equals

	* version 1.1.6

2011-09-08  Stephane Germain  <germste@gmail.com>

	* Add the possibility to give the weights of each options

2011-08-02  Stephane Germain  <germste@gmail.com>

	* Do not sort the z in predict

2011-04-15  Stephane Germain  <germste@gmail.com>

	* Add a parameter to change the behavior on errors in the GSL
	library and set the default to continue on error.

	* version 1.1.4

	* Replace the NA by -1 in predict before calling the C functions

	* Now using libirt 1.0.2

	* version 1.1.5

2011-02-16  Stephane Germain  <germste@gmail.com>

	* remove the yellow in the automatically choosen color

2011-02-11  Stephane Germain  <germste@gmail.com>

	* fix a typo in "LOCAL_INDEPENDENCE_TEST" (thanks to Victor Cervante)

	* fix a bug in llk_ratio_ld_test_mc_wrapper, was called with the
	expanded data

	* version 1.1.3

2010-12-02  Stephane Germain  <germste@gmail.com>

	* complete refactoring of the code and documentation

	* unification of the classes irt, mirt and genirt as rirt

	* release version 1.1.0

2010-11-16  Stephane Germain  <germste@gmail.com>

	* fixes in the documentation

	* change the "prob" type to "occ"

	* made genresp accept ICCs or OCCs to generate from nonparametric curves

	* added data from a qualification test

2010-11-06  Stephane Germain  <germste@gmail.com>

	* added the intercepts to the coefficients

	* added attributes to the coefficients to re-simulate with genresp

	* changed the default maximum Newton iteration to 200

2010-11-05  Stephane Germain  <germste@gmail.com>

	* added the documentation of genitem, genabil and genresp

	* remove the patterns data

	* added simulated examples in the documentation

	* added warnings when convergence didn't occurs

	* release version 1.0.2

2010-11-04  Stephane Germain  <germste@gmail.com>

	* Added functions to generate random items, abilities and
	responses (genitem, genabil, genresp)

	* format the output of predict as tables in irt and mirt

2010-10-21  Stephane Germain  <germste@gmail.com>

	* Changes in the documentation

2010-10-20  Stephane Germain  <germste@gmail.com>

	* Make newdata in predict accept non-integer and non-expanded data

	* release version 1.0.1

2010-10-18  Stephane Germain  <germste@gmail.com>

	* change mirt to accept any data type as options not just integers

	* format the output of some tables (coef, fit) in mirt

	* release version 1.0.0

2009-04-07  Stephane Germain  <germste@gmail.com>

	* compute the standard errors at each iteration for the mc and
	graded models

2008-01-31  Stephane Germain  <germste@gmail.com>

	* check for the convergence of the likelihood in all the EM

	* change the default for max.em.iter from 20 to 100

	* change the default for precision from 0.001 to 1e-5

2007-09-03  Stephane Germain  <germste@gmail.com>

	* add the option to adjust the quadrature weights
	at the end of each EM iteration (EXPERIMENTAL)

2007-07-30  Stephane Germain  <germste@gmail.com>

	* fix the nbr_ignore bug (wasn't used)

	* check if there is at least two options in mirt

	* add a README file with installation instruction

2007-07-19  Stephane Germain  <germste@gmail.com>

	* compute the log likelihood ratio test for local dependance

2007-07-18  Stephane Germain  <germste@gmail.com>

	* compute the classical test theory statistics

2007-07-17  Stephane Germain  <germste@gmail.com>

	* compute the log likelihood ratio goodness of fit test
	for multiple choice item

2007-07-13  Stephane Germain  <germste@gmail.com>

	* compute the log likelihood ratio goodness of fit test
	for binary item

2007-07-12  Stephane Germain  <germste@gmail.com>

	* add the information functions

2007-07-05  Stephane Germain  <germste@gmail.com>

	* add the graded model

2007-07-02  Stephane Germain  <germste@gmail.com>

	* change the way the prob are selected in predict.mirt
	(now we select the items not the options)

	* better label for the options in plot.mirt

2007-06-28  Stephane Germain  <germste@gmail.com>

	* add the multivariate model

2006-07-10  Stephane Germain  <germste@gmail.com>

	* fixe a bug in the normal ogive correction

	* change the initial thresholds to the normalized difficulties

2006-06-30  Stephane Germain  <germste@gmail.com>

	* add an option to set the verbosity level

2006-04-13  Stephane Germain  <germste@gmail.com>

	* add an option to have the parameters of the normal ogive instead of the 
	logistic (divide the slope by 1.702)

2006-04-08  Stephane Germain  <germste@gmail.com>

	* change the default bandwith by a factor of 1.1 in accordance with
	testgraf

2006-04-06  Stephane Germain  <germste@gmail.com>

	* initial release 0.1
