Question

1. Obtain one of the data sets available at the UCI Machine Learning Repository and apply as many of the different visualization techniques described in the chapter as possible. The bibliographic notes and book Web site provide pointers to visualization software.

2. Identify at least two advantages and two disadvantages of using color to visually represent information.

3. What are the arrangement issues that arise with respect to three-dimensional plots?

Answer 1

Answers:
1) MATLAB and R have excellent facilities for visualization

2)
Advantages:
Colors allow for an extra dimension to be plotted on a graph.It is often easy to distinguish a color when points in a plot are very small, while it can be difficult to distinguish shapes.
Disadvantages:
It may look different on different computers or printed ondifferent printers, some people are color blind.Colors do not have a meaningful order. You canfix this by excluding a color, but then you have fewer available colors to work with it.

3) The issues of three dimensional plots is how to display information so that as little information is obscured as possible. If the plot is of a two-dimensional surface, then the choice of a viewpoint is critical. However, if the plot is inelectronic form, then it is sometimes possible to interactively change
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