version 2.05 (April 15 2012): - changed way that "print.data.frame" is altered to comply with R 2.15.0 version 2.02 (November 14 2011): - added "make partial interaction group" to Adjusting Menu version 2.01 (September 07 2011): - changed step.one(), step.up(), step.down() output to display "error" (when there is an error) or "main effect" (when the main effect under an interaction is not tested), instead of "999" - changed "[A]" and "[D]" in model summaries to "[p-values building from null model]" and "[p-values dropping from full model]" - fixed bug causing Rbrul to crash when all models fail to converge version 2.0 (August 07 2011): - fixed bug to allow changing p-value threshold for step-up and step-down - added trim() function to test and collapse factor levels in a model version 1.9.9.6 (January 12 2011): - made changes to get.response() and crosstab() to prevent error with levels of response variable, seemingly because of a change to how variables are passed between functions? version 1.9.9.5 (October 20 2010): - bug in loading lme4 package fixed under R 12.0, change to warning version 1.9.9 (August 14 2010): - restored calculation of R-squared (for linear fixed-effects models) and Nagelkerke pseudo-R-squared (for logistic fixed-effects models) - restored plotting functions - changed "an(other) pairwise interaction" to "a(nother) pairwise interaction" - fixed bug where if "response" was the name of a data column, it would crash version 1.9.8.5 (July 27 2010): - redirected install.packages() to repos="http://r-forge.r-project.org". - altered warning to suggest running on Mac only under 64-bit version. version 1.9.8 (July 19 2010): - replaced the text-based file loading dialog with the standard GUI using file.choose(). - added a warning concerning a possible crash while trying to load the package lme4 due to the temporarily unavailable binary for Mac OS X. the user is directed to the instructions at http://www.ling.upenn.edu/~johnson4/rbrul.html or to use rbrul(pack=F). version 1.9.7 (Mar 28 2010): - changed step.one() to give p-values to the predictors in a one-level analysis by the usual drop-and-test method. - removed comment.char="#" from the read.table() commands under "load data". comments will now have to be in their own field in delimited files, or, as before, separated from the token string by one or more spaces in token files. - installed Google Analytics to track use of Rbrul. as a result, loading Rbrul with source("http://www.danielezrajohnson.com/Rbrul.R") will now also open a blank browser window that can be closed at any time. versions 0.1 to 1.9.6 (2008-2010): - developments lost in the mists of time.