SORTING Arrays by index values
Dear Mark, If I understand properly what you want, then one way to do it is acc.gp.bl.wtmn[order(as.numeric(row.names(acc.gp.bl.wtmn))),] (Note that the rows are currently ordered by character value.) I hope that this helps, John
On Tue, 4 Feb 2003, Mark G Orr wrote:
Hello, I'm somewhat new to R. I've searched the archive for the last year and tried to consult the manual pages for the following problem, but did not find an answer. I want to sort an array by the index values. Here is the array
acc.gp.bl.wtmn
Gp17 Gp4 1 0.5703125 0.6406250 10 0.7812500 0.7109375 11 0.8046875 0.7343750 12 0.8359375 0.7890625 13 0.8515625 0.7109375 14 0.8281250 0.7343750 15 0.8671875 0.7812500 16 0.8125000 0.7578125 17 0.7734375 0.7500000 18 0.8000000 0.7800000 19 0.8700000 0.7300000 2 0.8046875 0.7265625 20 0.8300000 0.7400000 21 0.7500000 0.8000000 22 0.7700000 0.7600000 23 0.8200000 0.7800000 24 0.7600000 0.7400000 25 0.8100000 0.8000000 3 0.7578125 0.7812500 4 0.8203125 0.7890625 5 0.7890625 0.7421875 6 0.7265625 0.7812500 7 0.8125000 0.7421875 8 0.8515625 0.7265625 9 0.8203125 0.6953125 My question is: How do I sort by the first index (the values are 1:25) without losing the associated values per index value for the two columns(Gp17 and Gp4). I want ascending order (1:25) of the index values. Thank you in advance. -Mark Orr Postdoctoral Fellow Psychology Dept. Carnegie Mellon Univ. Pittsburgh, PA 15213
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