Star Plot

Star Plots illustrate multiple variables for location or other observation shown. The resulting lines around each primary point then allow for comparison against the star plots for other locations or observations.

This image shows the star plots for 16 different cars. The variable shown are as follows:

1 Price
2 Mileage (MPG)
3 1978 Repair Record (1 = Worst, 5 = Best)
4 1977 Repair Record (1 = Worst, 5 = Best)
5 Headroom
6 Rear Seat Room
7 Trunk Space
8 Weight
9 Length

http://www.itl.nist.gov/div898/handbook/eda/section3/gif/starplot.gif

Correlation Matrix

A Correlation Matrix describes the correlation among a number of variables. It can sometimes be considered a type of Similarity Matrix because as two variables have greater correlations would often be considered as similar.

In this instance, however, the correlation of certain aspects of wine are shown.

http://rattle.togaware.com/rattle-correlation.png

Similarity Matrix

A Similarity Matrix compares the similarity of a set of data. This matrix shows repetition in the Beatles' song, "Hey Jude".

Discussion
1. The "deep blue" part along the off-diagonal lines of similarity matrix represents repeating parts.
2. The chorus is easier to detect from the similarity matrix than the verse.
3. The dissimilar part between very similar parts is usually instrument playing without vocal sounds.
4. In Beatles' "Hey, Jude", the second half over 2 minutes is composed of one sentence only. It repeats many, many times. Salute to you, Beatles.

http://www-scf.usc.edu/~ise575/a/projects/shiu/website/

Stem and Leaf Plot

A Stem and Leaf Plot shows the shape and distribution of data.

This image plots students grades.

http://www.uow.edu.au/student/attributes/statlit/modules/module2/shapedist.html

Box Plot

A Box Plot, or box and whisker
diagram, provides a simple
graphical summary of a set of
data.

It shows a measure of central
location (the median), the average,
and measures of dispersion.

Box Plots are especially useful
when comparing two or more sets of data

http://www.physics.csbsju.edu/stats/box2.html

In statistics, a Histogram is a graphical display of tabulated frequencies, shown as bars. It shows what proportion of cases fall into each of several categories.

A Histogram differs from a Bar Chart in that it is the area of the bar that denotes the value, not the height as in bar charts, a crucial distinction when the categories are not of uniform width.

http://www.aivosto.com/project/help/pm-histogram.gif

Parallel Coordinate Graph

Multivariate relations are obtained through the use of Parallel Coordinate Graphs. Specific properties of the relationship correspond to the geometrical properties of the graph.

http://www.stat.columbia.edu/~cook/movabletype/mlm/mdg1.png