A star plot shows multivariate data with each star representing a single observation. This particular star plot has each circle representing a different item. The different colors represent a different class that each belong to.
http://visalix.xrce.xerox.com/index.php?page=help
A similarity matrix is a matrix of scores that show the similarity between two data sets or points. This particular similarity matrix shows the similarity between signatures associated with two different contrasts.
http://www.biomedcentral.com/1471-2164/8/353/figure/F5?highres=y
A stem and leaf plot shows each value of data split into a different "leaf" (usually the last digit) and a "stem" (all of the other digits). This particular stem and leaf plot shows the ages of people present at a family reunion.
Box plots are an easy way to summarize statistical data on an interval scale. They show means, minimums, maximums, and any other statistics needed. This particular box plot shows the web hits www.sas.com received in early 1999. It is shown in hits per each day of the week.
http://support.sas.com/rnd/app/da/new/daunivariate.html
A histogram is a graphical representation of data in a proportionally distributed manor. This particular histogram shows the number of students in relation to the score they received on the final exam.
http://www.webquest.hawaii.edu/kahihi/mathdictionary/H/histogram.php
A triangular plot uses three variables in the shape of a triangle to represent statistics. This particular triangular plot shows the three variables: Liberal Democrat, Labour, and Conservative. It shows their voting percentage in each distinguished corner of the triangle.
http://www.ex-parrot.com/~chris/wwwitter/20050407-it_doesnt_matter_how_you_vote_either_way_your_planet_is_doomed.html
A windrose is used by meteorologists to show how wind speed and wind direction are distributed in a certain area. This particular windrose is showing the wind speed.
http://vistadatavision.com/reports/wind-rose/
