I am having trouble finding the mean of a specific part of my dataset. Here is a sample of it:
plot lai leaf 1 104 82 1 2 104 167 2 3 104 248 3 4 104 343 4 5 104 377 5 6 105 64 1 7 105 139 2 8 105 211 3 9 105 296 4 10 105 348 5 11 106 94 1 12 106 167 2 13 106 243 3 14 106 281 4 15 106 332 5 16 108 83 1 17 108 382 2 18 108 320 3 19 108 146 4 20 108 129 5 I have many different plot numbers, none of which follow any kind of specific numeric sequence (even though I have sorted them from smallest to largest). I need to take the average (mean) of the LAI for each plot, and was wondering if there was a way to specify the code to do this. For example: I need the average of all the LAI measurements for each leaf of plot 104, 105, etc. Any help would be appreciated. Thanks! Get Outlook for iOS<https://aka.ms/o0ukef> [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
