Changes in version 2.5                         

  - new fecrtCI method based on Levecke B, et al. (2015).

                  Changes in version 2.4 (2023-10-14)                   

  - Update to new rstan version for future compatibility

                  Changes in version 2.3 (2020-01-19)                   

  - No longer requiring integer correction factors

                 Changes in version 2.2-1 (2019-09-26)                  

  - Updated makevars files

  - Fixed a bug in the unpaired model (thanks to Paul)

  - Improved documentation

  - Improved examples

  - Improved printing of warning messages

                 Changes in version 2.1-2 (2018-11-09)                  

  - Improved usability of fecr_stanExtra()

  - Fixed a minor bug in stan2mcmc() for paired model

  - Updated citation information, URL

  - Updated Stan version requirement

                  Changes in version 2.0 (2018-05-02)                   

  - Added individual efficacy model for paired design

  - Added vignette

  - Added functions for selecting priors in small sample size (<10)
    settings

  - Added simplified model for small sample sizes in paired design

  - Added fecr_stanExtra() to import external models hosted on gitHub

  - Improved function documentations

  - Modified default arguments: nsamples, nburnin, nchain, zeroInflation

  - Fixed parameter sampling issue in using the unpaired model without
    zero inflation

  - Added simple MCMC convergence diagnostic output based on split chain
    potential scale reduction factors

  - Added possibility to not save all model parameters in fec_stan() and
    fecr_stan()

  - Added possibility to simulate with different efficacy in simData2s()

  - Re-named function fecr_probability() to fecr_probs()

  - Added 'plot' argument in fecr_probs() to plot posterior density of
    reduction

  - Added warnings in using fecrtCI() when all of post-treatment counts
    are zero

  - Added warnings in using fec_stan() and fecr_stan() when divergent
    transitions occur

  - Cleaned Stan models code

  - Removed un-used dataset

                  Changes in version 1.4 (2017-08-03)                   

  - Modified default arguments for fec_stan and fecr_stan

  - Optimized package onLoad messages

  - Added plotCounts function

  - Corrected fec_stan help file examples (thanks to Ivailo)

  - Corrected coding error with non-default prior for ziunpaired model
    (thanks to Anja)

                  Changes in version 1.3 (2017-01-25)                   

  - Fixed bug in printing MCMC summaries for meanEPG

  - Fixed implementation bug of the zero-inflation models that was in
    v1.2

  - Fixed minor bug in printing warnings

  - Added function to compute probability of reduction based on
    posterior density

  - Added flexibility to un-constrain reduction between 0 and 1

  - Updated citation information

                  Changes in version 1.2 (2016-11-08)                   

  - Allowed direct extraction of summary output

  - Fixed minor bug in validating correction factors

  - Fixed minor bug in converting multiple mcmc chains

  - Updated citation information

                 Changes in version 1.1-2 (2016-10-17)                  

  - Updated documentation

  - Removed redundant functions

  - Updated LinkingTo version requirements

  - Updated Stan program syntax

  - Fixed minor bug in the mcmc output of the 1-sample zero-inflation
    model

                  Changes in version 1.0 (2016-04-16)                   

  - MCMC inference migrated from Metropolis-Hastlings algorithm and
    Gibbs sampler to Stan modelling language.

  - Further improved bug fix of version 0.4.

  - Improved models.

  - Full-support on zero-inflation models.

                 Changes in version 0.4-1 (2015-02-13)                  

  - Bug fixes introduced since version 0.1.

  - Further improved bug fix of version 0.3.

  - Alerts the user in case of atypical data through 'NOTE'.

  - Added verboselevel functionality for detailed debugging.

  - Improved help and added tests.

                  Changes in version 0.3 (2014-09-06)                   

  - stable release on CRAN

  - Updated package structure: NEWS, ChangeLog and CITATION files.

  - Bug fix: all "zero" draws from rgamma are captured and set to
    minrgamma=.Machine$double.eps. Thus numerical results are likely to
    change.