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The new features in version 2.1-2 are as follows:

package gamlss:

  • The function histSmo() is added for density estimation.
  • The function histDist() now has the function gamlssML() as its main fitting function. The fitting function  gamlss() is only used if gamlssML() fails.
  • The function gamlssML() has now an argument start.from.
  • In the function fitDist(), the normal distribution NO() is added to the list of “.realline” so it also appears in the   AIC list
  • The  function gamlssML() has now method summary()
  • A bugs is corrected in the function package vcov(), thanks to Tom Jagger
  • The function random() is modified to allow Local maximum likelihood estimation of the smoothing parameter lambda
  • The function pvc() has been modified to allow fixing the dfs when the “by” argument is a factor (Tim Cole suggest it).
  • The predict.gamlss() function works now with offsets
  • The worm plot function wp() works now with any fitted object which has the method resid()
  • The function dop() is renamed as dtop() and now works with any fitted object which has the the method resid()
  • The function fitted.plot() is renamed fittedPlot() to avoid S3 problems
  • pvc(): now predict is working when the argument  “by” is a continuous variable, thanks to Torsten Hothorn for point out to us. The fitted function fitDist() is introduced for fitting different distributions to a single set of data. This function fits several parametric distributions to a vector of data and chooses the one with minimum GAIC.

package gamlss.dist:

  • The distributions SHASHo and SHASHo2 and PARETO2o are added to the package gamlss.dist
  • The random generating function rDEL() is now corrected thanks to Dr. Conrad Burden
  • The following distributions are added to package gamlss.dist: YULE, WARING, GEOM, IGAMMA, PARETO2
  • The distributions BCTo, BCPEo, and BBCGo are added so BCT, BCPE and BCCG can have”log” as a default

package gamlss.util:

  • The functions fitFixBP() and fitFreeKnots() for fitting fixed and free break points respectively have been improved

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