Change that column to be a factor with the levels in the order that you
wish.
dataFrame$column <- factor(dataFrame$column, levels=c(1:150, "S", "Z"))
Then it will sort in that order. E.g.,
> d <- data.frame(One=c(5,21,10,"Z","S",9), Two=2^(1:6))
> d[order(d$One),]
One Two
3 10 8
2 21 4
1 5 2
6 9 64
5 S 32
4 Z 16
> d$One <- factor(d$One, levels=c(1:150,"S","Z"))
> d[order(d$One),]
One Two
1 5 2
6 9 64
3 10 8
2 21 4
5 S 32
4 Z 16
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Sun, Jan 11, 2015 at 2:21 AM, raz <barvazd...@gmail.com> wrote:
> Hi,
>
> I would like to sort a data frame by a column, the column to sort by has a
> list of numbers 1:150 (a few numbers are missing so the total is 137) and
> two letters "S" , "Z". How can I sort it so that first I have the numbers
> in running order (1,2,3,...150) and then the letters S and Z?
>
> the column class is "factor"
>
> [1] 1 10 100 101 102 104 105 106 107 108 109 11 110 111 113 114 115
> 116
> [19] 117 118 119 12 120 122 123 124 125 126 127 128 129 130 131 132 134
> 135
> [37] 136 137 138 139 140 141 142 143 144 145 146 147 148 149 15 150 16
> 17
> [55] 18 19 2 20 22 23 24 25 26 27 28 29 3 30 31 32 33
> 34
> [73] 35 36 37 38 39 4 40 41 42 43 44 45 46 47 48 5 50
> 51
> [91] 52 53 54 55 56 57 58 59 6 60 61 62 63 64 65 68 69
> 7
> [109] 70 71 72 74 76 77 78 79 8 80 81 82 83 84 85 86 87
> 88
> [127] 89 9 90 91 92 93 94 95 96 97 98 S Z
>
>
> Thanks,
>
> Raz
>
> --
> \m/
>
> [[alternative HTML version deleted]]
>
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