This should do what you want.
#--x <- read.table('clipboard', header=TRUE,
as.is=TRUE)
# convert dates
x$date <- as.POSIXct(strptime(x$SampleDate,
"%m/%d/%Y"))
# put ForkLength into bins
x$bins <- cut(x$ForkLength, breaks=c(32, 34, 37, 40),
include.lowest=TRUE)
# count the bins
tapply(x$Count, x$bins, sum)
# plot the data
plot(x$date, x$ForkLength, col=c('green',
'red', 'orange')[x$bins])
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)
along the X axis and ForkLength along the Y axis.
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