Full_Name: Guy W. Tillinghast Version: 2.8.0 OS: Windows XP professional Submission from: (NULL) (24.248.24.3)
I am encountering difficulty asking R to manipulate the correct columns in Expression Set class (object 4). I download the ALL data with: library(golubEsets) data(Golub_Merge) Note, the data has the samples not in order. This is not R's fault (at least not that I can tell): > Golub_Merge$Samples [1] 39 40 42 47 48 49 41 43 44 45 46 70 71 72 68 69 67 55 56 59 52 53 51 50 54 [26] 57 58 60 61 65 66 63 64 62 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 [51] 17 18 19 20 21 22 23 24 25 26 27 34 35 36 37 38 28 29 30 31 32 33 I want a subset: > learning.set<-c(1,2,3,6,8,10,11,12,13,15,16,17,18,19,20,21,23,24,26,30,31,32,34,35,36,37,39,43,44,45,46,47,48,49,50,51,52,53,55,56,57,58,59,60,62,63,64,65,66,67,68,69,70,72) > learningEset<-Golub_Merge[,learning.set] > learningEset$Samples [1] 39 40 42 49 43 45 46 70 71 68 69 67 55 56 59 52 51 50 57 65 66 63 62 1 2 [26] 3 5 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 25 26 34 35 36 37 38 28 [51] 29 30 31 33 Note what happened: 1) the order is difference than learning.set 2) samples have been switched: example: sample 72 out, sample 71 in. Okay, I troubleshoot: maybe it matters what order I request samples: > learning.set<-c(39,47,48,49,43,44,45,46,70,72,68,69,67,55,56,59,52,53,51,50,57,58,60,65,66,63,64,62,1,2,3,6,8,10,11,12,13,15,16,17,18,19,20,21,23,24,26,34,35,36,37,30,31,32) > learningEset<-Golub_Merge[,learning.set] > learningEset$Samples [1] 5 13 14 15 9 10 11 12 31 33 29 30 28 21 22 25 18 19 17 16 23 24 26 37 38 [26] 35 36 34 39 40 42 49 43 45 46 70 71 68 69 67 55 56 59 52 51 50 57 62 1 2 [51] 3 65 66 63 Frankly, this is troubling that R did not do what it was told. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
