[R] Binning

[Felipe Carrillo]

Dear List:
I have a dataset with over 5000 records and I would like to put the Count in bins
 based on the ForkLength. e.g.
  Forklength   Count
     32-34        ?
     35-37        ?
     38-40        ?
     and so on...
     and lastly I would like to plot (scatterplot) including the SampleDate
     along the X axis and ForkLength along the Y axis. I recently saw an
      example similar to this one here but I don't want a histogram I      just want to see the ForkLength ranges with different colors. For example:
      ForkLength 32-34---green
      ForkLength 35-37---red
      ForkLength 38-40--Orange
      Thanks in advance
 
 SampleDate       ForkLength Count
1    12/4/2007         32     2
2    12/6/2007         33     1
3    12/7/2007         33     2
4    12/7/2007         33     2
5    12/7/2007         34     1
6    12/9/2007         31     1
7    12/9/2007         33     2
8   12/10/2007         33     5
9   12/10/2007         34     1
10  12/11/2007         33     2
11  12/15/2007         34     1
12  12/16/2007         33     2
13  12/17/2007         35     1
14  12/19/2007         33     1
15  12/19/2007         35     1
16  12/20/2007         31     1
17  12/20/2007         32     1
18  12/20/2007         33     1
19  12/20/2007         34     3
20  12/21/2007         31     1
21  12/21/2007         32     3
22  12/21/2007         33     4
23  12/21/2007         34    11
24  12/21/2007         35    16
25  12/21/2007         36     3
26  12/21/2007         37     1
27  12/22/2007         32     1
28  12/22/2007         33     3
29  12/22/2007         34     1
30  12/22/2007         35     2
31  12/23/2007         32     1
32  12/23/2007         35     1
33  12/25/2007         32     1
34  12/25/2007         36     1
35  12/26/2007         34     1
36  12/26/2007         35     2
37  12/26/2007         36     1
38  12/27/2007         34     4
39  12/27/2007         35     2
40  12/27/2007         36     2
41  12/28/2007         32     1
42  12/28/2007         33     1
43  12/28/2007         34     1
44  12/28/2007         35     3
45  12/28/2007         36     4
46  12/28/2007         37     6
47  12/28/2007         38     2
48  12/28/2007         39     2
49  12/29/2007         34     1
50  12/29/2007         35     5
51  12/29/2007         36     2
52  12/29/2007         37     1
53  12/30/2007         33     3
54  12/30/2007         34    10
55  12/30/2007         35    10
56  12/30/2007         36     6
57  12/30/2007         37    15
58  12/30/2007         38     3
59  12/31/2007         33     3
60  12/31/2007         34     8
61  12/31/2007         35     9
62  12/31/2007         36     6
63  12/31/2007         37     3
64  12/31/2007         38     1
65    1/1/2008         34     6
66    1/1/2008         35     6
67    1/1/2008         35     1
68    1/1/2008         36     6
69    1/1/2008         37     9
70    1/1/2008         38     1
71    1/2/2008         34     2
72    1/2/2008         34     1
73    1/2/2008         35     2
74    1/2/2008         36     2
75    1/2/2008         37     2
76    1/2/2008         39     1
77    1/3/2008         34     3
78    1/3/2008         35     3
79    1/3/2008         36     2
80    1/3/2008         37     3
81    1/8/2008         32     1
82    1/8/2008         33     7
83    1/8/2008         34     6
84    1/8/2008         35    10
85    1/8/2008         36    16
86    1/8/2008         37     7
87    1/8/2008         38     1
88    1/8/2008         39     1
89    1/9/2008         33     1
90    1/9/2008         34    20
91    1/9/2008         35    49
92    1/9/2008         36    49
93    1/9/2008         37    39
94    1/9/2008         37     1
95    1/9/2008         38    18
96    1/9/2008         39     1
97    1/9/2008         40     1
98   1/10/2008         32     3
99   1/10/2008         33    13
100  1/10/2008         34    56
101  1/10/2008         35    33
102  1/10/2008         36    24
103  1/10/2008         37    18
104  1/10/2008         39     1
105  1/11/2008         33     7
106  1/11/2008         34    46
107  1/11/2008         35    41
108  1/11/2008         36    28
109  1/11/2008         37    29

Felipe D. Carrillo
Supervisory Fishery Biologist
Department of the Interior
US Fish & Wildlife Service
California, USA