Graphics Reference
In-Depth Information
It may also be useful to see if any patterns exist in customer rating of
products with respect to interests. Using the Ranking tab, map node color
to
avgrating
. Use a spectrum where green is a good rating, red is a bad
rating, and gray is a neutral rating.
As shown in
Figure 14-4
, when you view the result, you see that there is
no strong correlation between product interest and rating, other than the
products with the worst reviews tend to be clustered together, and the very
worst of them are clustered around Tufte's book where the least prolific
reviewers are. Those customers were seemingly passionate enough about
Tufte's book to review it, but also compelled to rate the poorly reviewed
topics as well. In contrast, the most prolific reviewers don't seem to take the
time to review unpopular topics.
