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deviation |
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deviation [‚dēv·ē′ā·shən] (engineering) The difference between the actual value of a controlled variable and the desired value corresponding to the set point. (evolution) Evolutionary differentiation involving interpolation of new stages in the ancestral pattern of morphogenesis. (optics) The angle between the incident ray on an object or optical system and the emergent ray, following reflection, refraction, or diffraction. Also known as angle of deviation. (petroleum engineering) During a drilling operation, the inclination of the borehole from the vertical. (statistics) The difference between any given number in a set and the mean average of those numbers. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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] ([greater than or equal to] 0) are numerical weights associated with the deviational variables [d. The standard deviational ellipse was also calculated, showing the dispersion in two dimensions (Crimestat) of the mean centers. For a more thorough discussion of the calculation of the weighted mean center and standard deviational ellipse, a Technical Note is available upon request from the FBI's Crime Analysis, Research and Development Unit, telephone (304) 625-3600. |
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