Hi I think my question might be answered before but i can't find the correct one. Here is the question. I have a data frame from a csv file which contains about 30 variables. lit is like this. (the values are just number I arbitrary created here) id group calorie weight height bmi co2........ SBP 1 a 200 160 100 30 50 90 2 a 100 100 130 35 40 70 3 b 60 190 110 . . ........ . 4 b 30 . . . .............. 5 c . . . . ............... . . . ............................................etc I want to use for loop or any other methods to write one anova function to run anova tests for each numeric variable above, so I can get about 30 anova results. Can someone help me on this Thank you -- View this message in context: http://www.nabble.com/do-multiple-anova-tests-tp17657995p17657995.html Sent from the R help mailing list archive at Nabble.com.