hello, I am working with some data which i would like to find the best fit model for them. First, this data are in a matrix. Each of the columns are treatments and the raws are repetions for the each tratment. So, i've already maden one chart with all the boxplot graphic, for each treatment. Now, i need to find the best fit model for them, i know that exponetial or log model would be perfect in this situation (both can help me) Therefore, i need to find the best exponential model for this data, and i would like draw this tendence line in my boxplot (if it is possible, of course.) if someone could help me i would be appreciated. i am trying to solve these, but i am not having sucess. best wishes for all. Rodrigo Gazaffi --- Acabe com aquelas janelinhas que pulam na sua tela. AntiPop-up UOL - ?? gr??tis! http://antipopup.uol.com.br