Ask a psychic? Perhaps show your real problem (not this vague handwaving) to a statistician?
If you are in a statistics course, talk to your instructor or teaching assistant? This is R-help, not a statistics helpline, or a homework helpline. You are expected to know at least the basic statistics theory you need to implement, and provide a reproducible example using R syntax to get your helpers started in the right direction. Some points you should try to clarify: what do you mean by "average"? What distribution(s) does your data follow? What is your null hypothesis? --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. Meng Wu <mengwu1...@gmail.com> wrote: Hi I have a table with four columns and 3 rows. I calculated the average for each columns as average (A), average (B), average (C) and average (D), then calculate the relative ratio as average (A)/average (B), and average (C)/average (D). I would like to know how can I calculate the significance between the two ratios. Thanks, Meng [[alternative HTML version deleted]] _____________________________________________ 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. [[alternative HTML version deleted]] ______________________________________________ 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.