Changes in version 3.0 (2017-12-23)                   

  - method option added: fit using combinatorial EM or single parameter
    expanded EM algorithm
  - accelerate option added: use turboEM to allow acceleration of EM
    algorithm
  - Corrected an error in the calculation of deviance residuals for
    family = negbin1
  - Corrected an error in the calculation of null deviance for family =
    negbin1
  - (Minor change) Change iter to return a vector of two values

                  Changes in version 2.0 (2015-05-12)                   

  - Added additive negative binomial regression (family = negbin1)
  - (Minor change) Removed bin.identity link function; avoided CRAN
    error in a simpler way
  - (Minor change) Documentation changes, including updated references

                  Changes in version 1.2 (2014-10-29)                   

  - Introduced bin.identity link function: identical to the standard
    identity link, but does not cause an error when used with the
    binomial family.
  - (Minor change) Corrections to avoid codetools errors.

                         Changes in version 1.1                         

  - The object returned by nnpois() now includes component standard.
  - (Minor change) Various very minor corrections.

                         Changes in version 1.0                         

  - Added na.action argument to addreg() and addreg.smooth()