Ok, thanks, I'll try with a simplier example: I have a vector with 4 levels
dataframe 1 station temp aaa 12 aaa 13 bbb 12 bbb 20 aaa 23 bbb 21 ccc 30 ccc 18 ddd 15 aaa 11 ddd 15 ddd 10 and a thresholds vector station thr aaa 20 bbb 18 ccc 25 ddd 10 I vant to select from dataframe 1 each value (level by level) > its own threshold value. How to do it automatically? (vector temp and vector thr have different length) Thanks ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
