GIS

A Geography Information System (GIS) is a computer-based system made to display material referenced to the environment. GIS can be used for site remediation, natural resources management, groundwater modeling, vegetation mapping and more. GIS can also show different layers of data, as the one above is showing layers of monitoring wells, industries and population.

Image found at: http://www.epa.gov/region5fields/htm/methods/gis/img/gis_illustration.jpg

State Plane Coordinate System

This is a type of rectangular coordinate system. State plane coordinate systems are used to show survey data. Each state has its own state plane coordinates according to their size. Each state has a different projection depending on the states size.

Image found at:http://www.gsd.harvard.edu/gis/manual/projections/fundamentals/zones.jpg

Star plots

Star plots are used to graph all sorts of data that are relative to the same behavior of all variables in a multivariate data set. Star plots are created with "spokes" and each spoke has represents a different data. With all of the interconnecting spokes the chart looks like a start hinse the name "star plot."

Image found at:http://upload.wikimedia.org/wikipedia/commons/0/09/MER_Star_Plot.gif

Correlation matrix

A correlation matrix is used to give correlations between all pairs of a data set. Correlation matrix's are used to show statistics and relationships between two different types of variables. This correlation matrix is showing data regarding excess returns vs. an index.
Image found at:

http://www.styleadvisor.com/products/styleadvisor/images/correlation3.gif

Similarity matrix

Here is an example of a similarity matrix. This type of graph shows similarity between two different types of data. All though they are not easy to read, they are good to use when compairing data. High scores are for similar data, and low scores are for more different data.
Image found at: http://cgi.mtc.sri.com/Cluster-Lab/01.jpg

Stem and Leaf Plot

Stem and Leaf plots are used to organized numerical data. If this plot represented students in a class over the past 5 years the plot would read 22; 26;27;31;33;35 etc.

This type of plots is a good way to help children learn mathmatical problems. Image found at: http://www.highpointsmath.com/sitemap/images/clip_image004_017.jpg

Box plot

Another type of statistical graph is a Box Plot. Box plots provide a simple graphical summary of a set of data. Box plots can handle large data sets, but do not share an exact retained value.
Image found at: http://math.youngzones.org/boxplot.gif