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Unformatted text preview: • The line in the box indicates the median value of the data. • If the median line within the box is not equidistant from the hinges, then the data is skewed. • The ends of the vertical lines or "whiskers" indicate the minimum and maximum data values, unless outliers are present in which case the whiskers extend to a maximum of 1.5 times the inter-quartile range. • The points outside the ends of the whiskers are outliers or suspected outliers. Useful software support box-plot • MATLAB for engineering and science. The function can be seen under Statistical Visualization/Distribution plot package and called: boxplot(…) and has 4 overloaded versions. • SoftStat Company also provide a good software for box plot and other types of graph called STATISTICAL, and it is free for download. • Microsoft Office Excel application....
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This note was uploaded on 12/03/2009 for the course COMPUTER E 770 taught by Professor Dr.mohammednizari during the Spring '09 term at Jordan University of Science & Tech.
- Spring '09