[R] Multiple comparison test about whole population, not about mean

Multiple comparison tests are usually used to compare groups based on the confidence region about the mean. Some great packages, like agricolae, proposes grouping information based on statistical tests. I am looking for a way to perform such a test, but based on the confidence region about the whol

[R] Metafor vs Meta vs Spreadsheet: wrong numbers

Hello, I experimented the Metafor and Meta packages in the scope of replacing Excel for meta-analysis. I performed the first working example provided in Michael Borenstein's book "Introduction to Meta-Analysis" with Excel, Metafor and Meta. The numbers given by my spreadsheet, which I vali