dear R community, i appologize as this is kind of a newbie question, but:
I want to assign group letters (like in anova post-hoc tests) to data with combined means and SDs. It's easy to apply t-test formulas to get a materix like (A - D are treatments | A B C D ----------------------- A| T F F B| T F C| F D| where true stands for sign. differences/ F for no sign. differences. is there an alogarithm that converts such a matrix to letters to be assignedto A, B, C,... ? and does maybe somebody know a packages that runs t-tests on means+SD+n data? lukas kohl ______________________________________________ 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.