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  2. Elliptical distribution - Wikipedia

    en.wikipedia.org/wiki/Elliptical_distribution

    In the 2-dimensional case, if the density exists, each iso-density locus (the set of x 1,x 2 pairs all giving a particular value of ()) is an ellipse or a union of ellipses (hence the name elliptical distribution). More generally, for arbitrary n, the iso-density loci are unions of ellipsoids. All these ellipsoids or ellipses have the common ...

  3. Template:Iso1 - Wikipedia

    en.wikipedia.org/wiki/Template:Iso1

    Wherever you want to add the proton or neutron drip line to the chart, add the option |drip= with one of the values t (top), r (right), tr (top-right), tl (top-left), trb (top-right-bottom), tb (top-bottom), tlr (top-left-right), b (bottom), l (left), bl (bottom-left), br (bottom-right), blr (bottom-left-right), lr (left-right), or tlb (top-left-bottom) to the cell template Iso1 or Iso2, as ...

  4. ISO 1 - Wikipedia

    en.wikipedia.org/wiki/ISO_1

    ISO 1 is an international standard set by the International Organization for Standardization that specifies the standard reference temperature for geometrical product specification and verification. The temperature is fixed at 20 degrees Celsius (°C), which exactly equals both 293.15 kelvin (K) and 68 degrees Fahrenheit (°F).

  5. Data conversion - Wikipedia

    en.wikipedia.org/wiki/Data_conversion

    Data conversion is the conversion of computer data from one format to another. Throughout a computer environment, data is encoded in a variety of ways. For example, computer hardware is built on the basis of certain standards, which requires that data contains, for example, parity bit checks.

  6. Index of dispersion - Wikipedia

    en.wikipedia.org/wiki/Index_of_dispersion

    In probability theory and statistics, the index of dispersion, [1] dispersion index, coefficient of dispersion, relative variance, or variance-to-mean ratio (VMR), like the coefficient of variation, is a normalized measure of the dispersion of a probability distribution: it is a measure used to quantify whether a set of observed occurrences are clustered or dispersed compared to a standard ...

  7. Contour line - Wikipedia

    en.wikipedia.org/wiki/Contour_line

    The prefix "'iso-" can be replaced with "isallo-" to specify a contour line connecting points where a variable changes at the same rate during a given time period. An isogon (from Ancient Greek γωνία (gonia) 'angle') is a contour line for a variable which measures direction.

  8. Origin (data analysis software) - Wikipedia

    en.wikipedia.org/wiki/Origin_(data_analysis...

    Finally the liborigin [1] library can also read .OPJ files such as by using the opj2dat script, which exports the data tables contained in the file. There is also a free component (Orglab) maintained by Originlab that can be used to create (or read) OPJ files. A free Viewer application is also available.

  9. Uncertainty coefficient - Wikipedia

    en.wikipedia.org/wiki/Uncertainty_coefficient

    Suppose we have samples of two discrete random variables, X and Y.By constructing the joint distribution, P X,Y (x, y), from which we can calculate the conditional distributions, P X|Y (x|y) = P X,Y (x, y)/P Y (y) and P Y|X (y|x) = P X,Y (x, y)/P X (x), and calculating the various entropies, we can determine the degree of association between the two variables.