=== actuar: An R Package for Actuarial Science == We are pleased to announce the immediate availability of version 1.0-0 of actuar. This release follows publication of our papers in JSS (*) and R News (**). From the NEWS file: Version 1.0-0 ============ NEW FEATURES o Improved support for regression credibility models. There is now an option to make the computations with the intercept at the barycenter of time. This assures that the credibility adjusted regression line (or plane, or ...) lies between the individual and collective ones. In addition, contracts without data are now supported like in other credibility models. o Argument 'right' for grouped.data() to allow intervals closed on the right (default) or on the left. o Method of quantile() for grouped data objects to compute the inverse of the ogive. USER-VISIBLE CHANGES o cm() no longer returns the values of the unbiased estimators when method = "iterative". o Specification of regression models in cm() has changed: one should now provide the regression model as a formula and the regressors in a separate matrix or data frame. o Due to above change, predict.cm() now expects 'newdata' to be a data frame as for stats:::predict.lm(). o Function bstraub() is no longer exported. Users are expected to use cm() as interface instead. BUG FIXES o Functions r<foo>() are now more consistent in warning when NA's (specifically NaN's) are generated (as per the change in R 2.7.0). o frequency.portfolio was wrongly counting NAs. o Domain of pdfs returned by aggregateDist() now restricted to [0, 1]. o Quantiles are now computed correctly (and more efficiently) in 0 and 1 by quantile.aggregateDist(). o coverage() no longer requires a cdf when it is not needed, namely when there is no deductible and no limit. The CRAN page for the package is http://cran.r-project.org/package=actuar The project's web site is http://www.actuar-project.org Comments and contributions to the project are more than welcome. (*) http://www.jstatsoft.org/v25/i07 (**) http://cran.r-project.org/doc/Rnews/Rnews_2008-1.pdf --- Vincent Goulet, Associate Professor ?cole d'actuariat Universit? Laval, Qu?bec Vincent.Goulet at act.ulaval.ca http://vgoulet.act.ulaval.ca _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages