Correlation Matrix

This map was taken from http://www.unt.edu/rss/class/Jon/SPSS_SC/Module9/M9_PCA/SPSS_M9_PCA1.htm

This is a good example of a correlation matrix.  A correlation matrix gives all possible combination of correlation between each variable.  Obviously, a correlation of a variable to itself is labeled as 1.

Similarity Matrix

This map was taken from http://tomcat.esat.kuleuven.be/txtgate/tutorial.jsp

This is a good example of a similarity matrix.  This matrix allows the viewer to see how similar two data points are to each other.  In this example, the points that are closer to red are more similar and the points that are closer to green are less similar.  Obviously the diagonal line is all red because these are where the data points are exactly the same.

Stem and Leaf Plot

This plot was taken from http://www.analyzemath.com/statistics/stem_leaf.html

This is a good example of a Stem and Leaf Plot.  This is similar to a histogram because it lets the viewer know the shape of the data.  In this example the middle column is considered the stem and the left and right columns are the leaves.

Boxplot

This plot was taken from http://www.mathworks.com/help/stats/boxplot.html

This is a good example of a boxplot.  A boxplot allows the viewer to see the distribution of a group of data within a variable.  A boxplot is convenient because it gives the minimum values, maximum values, the interquartile range, and the mean of the data.  It also lets the viewer see how normal the data is that they are looking at.

Histogram

This map was taken from http://www.pqsystems.com/qualityadvisor/DataAnalysisTools/histogram.php

This is a good example of a histogram.  A histogram allows the viewer to see the distribution of the data and what shape the data takes.  It is also a good visual way to see how the central limit theorem works.  The data is set at continuous intervals that are connected unlike a bar graph that looks at the intervals or points discretely.

Parallel Coordinate Graph

This graph was taken from http://www.evl.uic.edu/aej/424/kyoung/Training-parallelcoordinate.html

This is a good example of a parallel coordinates graph.  This is a way to visualize high-dimensional geometry and analyzing data that has multiple variables.  This also gives a graphical way of looking at multiple correlations.

Triangle Plot

This plot was taken from http://ex-parrot.com/~chris/wwwitter/20050407-it_doesnt_matter_how_you_vote_either_way_your_planet_is_doomed.html

This is a good example of a Triangle Plot or Ternary Plot.  This is a plot that has three different variables that all add up to a single constant.  It gives the viewer a chance to look at the ratios of these variables in an equilateral triangle.