Mental Map

http://mentalcharlois.wordpress.com/category/mental-mapping/

A mental map is a graphical representation based upon a person's point of view.  The mental map above shows a depiction of what a Bostonian might think a map of the United States is like.

Hypsometric Map

http://www.collaborativepractice.com/practiceGroupByCountry.asp?country=USA

A hypsometric map represents elevation of a surface map using tints.  The hypsometric map above uses tints to show surface elevations of the United States.

Isopleth Map

http://www.aegis.jsu.edu/mhill/phygeogone/isoplth.html

 

An isopleth map shows lines of constant variables, known as isopleth lines.  The isopleth lines connect constant variables within a surface map.  The maps above are examples of isopleth maps. 

Star Plot

http://assessment.tki.org.nz/Assessment-tools-resources/Alignment-of-tools-with-National-Standards/Reading/Observation-Survey

A star plot is a graphical representation of a data set over a number of different variables.  Plotting the data set along each axis creates a graphic showing how the variable correlates to the axis.  The star plot above shows the variable's relationship with letter identification, hearing, reading, writing, and concepts. 

Correlation Matrix

http://www.theanalysisfactor.com/covariance-matrices/

A correlation matrix describes the correlation among a variable within the matrix.  In the correlation matrix above, the correlation between weight, hours of sleep, exposure while sleeping, and life span are compared within the matrix.

Similarity Matrix

http://www.nature.com/hdy/journal/v80/n4/fig_tab/6883120t3.html

A similarity matrix represents the similarities between two data variables.  The similarity matrix above shows data between Black Maple and Sugar Maple tress in Ohio.

Stem and Leaf Plot

http://www.glencoe.com/sec/math/studytools/cgi-bin/msgQuiz.php4?isbn=0-02-833050-1&chapter=2&lesson=6

A stem and leaf plot shows the frequency of a data set in a graphical format.  In the stem and leaf plot above, the stems and leafs show the frequency of a given variable.