回答編集履歴
1
1列目の削除処理を追加
test
CHANGED
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@@ -17,6 +17,8 @@
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17
17
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table = CSV.table(infile)
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18
18
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19
19
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table[:col3] = table[:col1]
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20
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+
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21
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+
table.by_col!.delete(:col1)
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20
22
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21
23
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File.write(outfile, table)
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22
24
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@@ -52,23 +54,23 @@
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52
54
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53
55
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$ cat out.csv
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54
56
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57
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+
col2,col3
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58
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+
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59
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+
1,a
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60
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+
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61
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+
2,b
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62
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+
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63
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+
3,c
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64
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+
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65
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+
4,d
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66
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+
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67
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+
5,e
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68
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+
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69
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+
6,f
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70
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+
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71
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+
7,g
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55
72
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56
73
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|
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57
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-
col1,col2,col3
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58
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-
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59
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-
a,1,a
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60
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-
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61
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-
b,2,b
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62
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-
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63
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-
c,3,c
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64
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-
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65
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-
d,4,d
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66
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-
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67
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-
e,5,e
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68
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-
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69
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-
f,6,f
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70
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-
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71
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-
g,7,g
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72
74
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73
75
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```
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74
76
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