Tuesday, August 4, 2009

Star plots




Star plots allow you to compare different types of data for various experiments or designs. The radius of the star or design represents different characteristics. This particular star plot is a plot of MER IDD and other various designs.

source: https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjWz-5thcbtTlVmyaVIg80rlNj11FEbdsPaT5v7oD6RjXlGeGqJxbxTroN8P1D6rtHTJRN3Nwq1kNTi73-3xVgPiidbycUk-NCrooxTC996ciJOmBGJDmhyphenhyphenGz_HUFxoxojg88xRxTA1nsYC/s400/starplot.gif

Correlation matrix




In statistics, correlation (often measured as a correlation coefficient, ρ) indicates the strength and direction of a linear relationship between two random variables.

source: http://www.mega.nu/ampp/rummel/uc.tab8.1.gif

Similarity matrix




A similarity matrix is a matrix of scores which express the similarity between two data points. Similarity matrices are strongly related to their counterparts, distance matrices and substitution matrices.

source: http://tomcat.esat.kuleuven.be/txtgate/images/distmat.png

Stem and leaf plot


Stem-and-leaf plots are a method for showing the frequency with which certain classes of values occur. You could make a frequency distribution table or a histogram for the values, or you can use a stem-and-leaf plot and let the numbers themselves to show pretty much the same information.

source: http://www.learner.org/courses/learningmath/data/images/session3/3d3_solution.gif

Box plot




A box plot or boxplot (also known as a box-and-whisker diagram or plot) is a convenient way of graphically depicting groups of numerical data through their five-number summaries (the smallest observation (sample minimum), lower quartile (Q1), median (Q2), upper quartile (Q3), and largest observation (sample maximum). A boxplot may also indicate which observations, if any, might be considered outliers.

source: http://www.itl.nist.gov/div898/handbook/eda/gif/boxplot0.gif

Histogram




A histogram is a graphical display of tabulated frequencies, shown as bars. It shows what proportion of cases fall into each of several categories: it is a form of data binning. The categories are usually specified as non-overlapping intervals of some variable. The categories (bars) must be adjacent. The intervals (or bands, or bins) are generally of the same size.

source: http://www.daisy2000.com/Daisy2003/HorizontalHistogram.gif

Parallel coordinate graph




A parallel coordinate graph is used to plot large multivariate sets of data. One line in a parallel coordinate graph connects a series of variable of different values such as in the one depicted.

source: http://www.stat.columbia.edu/~cook/movabletype/mlm/mdg1.png