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Circumplex
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A circumplex is a set of variables that, when plotted as vectors in n-dimensional space, fall in a circular pattern if a set of variables forms a circumplex, the correlation matrix for the variables will have an unusual pattern called circular structure i
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Dimensional, английский
Размерный; пространственный; имеющий измерение 3-dimensional configuration трехмерная организация 2.5-dimensional configuration 2,5-мерная организация 2-dimensional configuration двухмерная организация
Correlation, английский
- A measure of linear association between two (ordered) lists. two variables can be strongly correlated without having any causal relationship, and two variables can have a causal relationship and yet be uncorrelated.
- Соотношение; корреляция
- N корреляция, соответ- ствие regular ~s закономерные соответствия
- Корреляция
- Correlation is a statistical measure of the association between two attributes or types of events. it typically ranges from -1 to 1, with a -1 indicating a complete negative association (e.g., if one type of event occurs the other cannot), and a +1 indicating a complete posipage 66 tive association. for continuous attributes, the pearson correlation coefficient is computed as the ratio of the covariance between two attributes to the product of the attributes` standard errors. see also: covariance.
- To correlate, in a stratigraphic sense, is to show correspondence in character and in stratigraphic position between geographically separated stratigraphic sections or rock bodies. there are different kinds of correlation depending on the feature or property to be emphasized (see section 3.a.9 and lithocorrelation, biocorrelation, and chronocorrelation). coset. a sedimentary unit made up o f two or more sets, either o f strata or o f cross-strata, separated from other strata or cross-strata by original flat surfaces o f erosion, nondeposition, or abrupt change in character (mckee and weir, 1953, p. 384).
- Creating relationships between an email activity and other records by using the information from email headers.
- Statistical measure of the degree to which the movements of two variables (stock/option/convertible prices or returns) are related. see: correlation coefficient.
- The extent to which a relationship exists between two or more elements. often used in seo research to infer relationships of variables on search rankings due to the black box nature of algorithms. always remember, however, that correlation ≠ causation.
- A standardised measure, bounded between −1 and +1, of the strength of association between two variables.
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Cauchy distribution, английский
The cauchy distribution (the term first used by uspensky, 1937) has a density function:
Chaid, английский
- Chaid is a classification trees program developed by kass (1980) that performs multi-level splits when computing classification trees for discussion of the differences of chaid from other classification tree programs, see a brief comparison of classificat
- Автоматическое выявление взаимодействия по методу хи-квадрат
- An early follow-on to the automatic interaction detection (aid) technique, it substituted the chi-square tests on contingency tables for the earlier techniques` reliance on normal theory techniques and measurements, like ttests and analyses of variance. the method performs better on many n-ary attributes (variables) than does the aid technique. but the method still suffers due to its reliance on repeated statistical significance testing, since the theory that these tests rely on assumes such things as independence of the data sets used in repeated testing (which is clearly violated when the tests are performed on recursive subsets of the data). see also: automatic interaction detection, classification and regression trees, decision trees, recursive partitioning.
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