Hello, I have a matrix (class matrix) composed of GridCell (row and column). The matrix value is the beta diversity index value between two grids.
Now I would like to get the average value of each GridCell. Please kindly advise how to make the calculation. Thank you. Elaine The matrix looks like (cited from Michael Friendly) I would like to get the average value of each color. Obs stim RPur Red Yel Gy1 Gy2 Green Blue BlP Pur1 Pur2 1 RPur . . . . . . . . . . 2 Red 11.5 . . . . . . . . . 3 Yel 13.1 6.0 . . . . . . . . 4 Gy1 12.6 7.9 6.2 . . . . . . . 5 Gy2 10.6 8.4 8.4 5.2 . . . . . . 6 Green 10.6 9.4 9.9 6.5 4.1 . . . . . 7 Blue 10.8 10.2 10.3 8.8 7.0 6.4 . . . . 8 BlP 7.3 11.3 12.7 11.2 10.4 9.9 4.2 . . . 9 Pur1 5.4 11.5 12.9 11.7 10.8 9.4 8.4 4.5 . . 10 Pur2 5.0 11.5 10.7 10.2 10.6 10.1 8.1 6.4 3 . [[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.