Databases Reference
In-Depth Information
T A B L E 13 . 1
Original sequence.
Height
Weight
65
170
75
188
60
150
70
170
56
130
80
203
68
160
50
110
40
80
50
153
69
148
62
140
76
164
64
120
Example13.2.1:
Let's revisit Example 8.5.1. In Example 8.5.1, we studied the encoding of the output of a
source that consisted of a sequence of pairs of numbers. Each pair of numbers corresponds
to the height and weight of an individual. In particular, let's look at the sequence of outputs
shown in Table
13.1
.
If we look at the height and weight as the coordinates of a point in two-dimensional space,
the sequence can be shown graphically as in Figure
13.1
. Notice that the output values tend to
cluster around the line
y
=
2
.
5
x
. We can rotate this set of values by the transformation
θ
=
(1)
Ax
200
190
180
170
160
150
140
130
120
110
100
90
80
10
20
30
40
50
60
70
80
F I GU R E 13 . 1
Source output sequence.
