Dear R users, Does anyone know of a package that implements the Johnson-Neyman procedure - for testing differences among groups when the regression slopes are heterogeneous (in an ANCOVA model)? I did not get any matches for functions when searching using R Site Search.
If it has not been implemented in R, does anyone know of another statistical package that has this procedure? I found very old scripts available for Mathematica, but have had difficulty getting them to work. Thanks in advance. best, Steve -- View this message in context: http://old.nabble.com/Johnson-Neyman-procedure-%28ANCOVA%29-tp26138992p26138992.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
