TRIANGULAR PLOT

This is a triangular plot of the current election from: http://ex-parrot.com/~chris/images/20050407/triangle.png

A triangular plot is a plot of three variables that always sum to one constant. Because this constant sum is present, only two numbers must be known to complete the plot.

WINDROSE

This is a windrose photograph from Seattle, Washinton taken from: http://www.climate.washington.edu/windrose/Seattle-WindRose.jpg

This type of "map" shows meteorologists how wind speed and direction are typically distributed at a given location.

CLIMOGRAPH

This is a climograph of Memphis, TN from: http://www.uwsp.edu/geo/faculty/ritter/images/atmosphere/climate/climographs/memphis.jpg

A climograph shows monthly precipitation and temperature for a given area.

POPULATION PROFILE

This is a population profile for Mobile County according to 1998 census data taken from: http://camellia.shc.edu/literacy/tablesversion/assignments/Image2.jpg

A population profile is a chart showing the number of people as a function of their ages.

SCATTER PLOT

This is a scatter plot showing correlation between husbands and wifes age taken from: http://cnx.org/content/m10950/latest/age_scatterplot.gif

A scatter plot uses the cartisian coordinate plane to graph two variables within a set of data. It is used mostly for comparison.

INDEX VALUE PLOT

This is an index value plot of streamflow in the United States taken from: http://water.usgs.gov/waterwatch/regplots/real/real_us_2.gif

Values for an index value plot are plotted on a line graph.

LORENZ CURVE

This is a lorenz curve from: http://content.answers.com/main/content/wp/en/b/bd/Lorenz-curve1.png

"The Lorenz curve is a graphical representation of the cumulative distribution function of a probability distribution" (http://en.wikipedia.org/wiki/Lorenz_curve)