vector-length.r

> data
   Length              Method Naive.Bayes
1     500             default      0.9072
2     500            stopping      0.8788
3     500            stemming      0.9038
4     500         word counts      0.8992
5     500    normalise length      0.8747
6     500 count and normalise      0.9074
7     500              TF/IDF      0.8993
8    1000             default      0.9068
9    1000            stopping      0.8791
10   1000            stemming      0.9031
11   1000         word counts      0.8987
12   1000    normalise length      0.8817
13   1000 count and normalise      0.9115
14   1000              TF/IDF      0.8988
15   1500             default      0.9067
16   1500            stopping      0.8825
17   1500            stemming      0.9000
18   1500         word counts      0.8996
19   1500    normalise length      0.8886
20   1500 count and normalise      0.9126
21   1500              TF/IDF      0.8997
22   2000             default      0.9077
23   2000            stopping      0.8806
24   2000            stemming      0.9024
25   2000         word counts      0.9004
26   2000    normalise length      0.8884
27   2000 count and normalise      0.9132
28   2000              TF/IDF      0.9005
29   2500             default      0.9076
30   2500            stopping      0.8753
31   2500            stemming      0.9017
32   2500         word counts      0.8990
33   2500    normalise length      0.8861
34   2500 count and normalise      0.9130
35   2500              TF/IDF      0.8992
36   3000             default      0.9076
37   3000            stopping      0.8753
38   3000            stemming      0.9017
39   3000         word counts      0.8990
40   3000    normalise length      0.8849
41   3000 count and normalise      0.9136
42   3000              TF/IDF      0.8991
43   3500             default      0.9076
44   3500            stopping      0.8753
45   3500            stemming      0.9017
46   3500         word counts      0.8990
47   3500    normalise length      0.8853
48   3500 count and normalise      0.9136
49   3500              TF/IDF      0.8991
50   4000             default      0.9076
51   4000            stopping      0.8753
52   4000            stemming      0.9017
53   4000         word counts      0.8990
54   4000    normalise length      0.8853
55   4000 count and normalise      0.9142
56   4000              TF/IDF      0.8991
57   4500             default      0.9076
58   4500            stopping      0.8753
59   4500            stemming      0.9017
60   4500         word counts      0.8990
61   4500    normalise length      0.8853
62   4500 count and normalise      0.9142
63   4500              TF/IDF      0.8991