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Permutation
| Statistic terms |
- This term has a distinct mathematical definition, but is also commonly used as a synonym for re-randomisation.
- A permutation of a set is an arrangement of the elements of the set in some order. if the set has n things in it, there are n! different orderings of its elements. for the first element in an ordering, there are n possible choices, for the second, there remain n−1 possible choices, for the third, there are n−2, etc., and for the nth element of the ordering, there is a single choice remaining. by the fundamental rule of counting, the total number of sequences is thus n×(n−1)×(n−2)×…×1. similarly, the number of orderings of length k one can form from n≥k things is n×(n−1)×(n−2)×…×(n−k+1) = n!/(n−k)!. this is denoted npk, the number of permutations of n things taken k at a time. c.f. combinations.
- Перестановка
- N перемещение, метатеза
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Перестановка, русский
Криптографическая операция, связанная с изменением порядка следования отдельных битов или символов в блоке данных. см. подстановка.
Размещение;, русский
Перестановка; перемена;, русский
Размещение, русский
- Размещение , деление, положение
- Продажа вновь выпущенных ценных бумаг инвесторам. например, размещение брокером облигаций среди определенной группы институциональных инвесторов.
- , см. комбинаторика.
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Mathematical, английский
- Analyzer, numerical integrator and computer эвм «маньяк»
- Математический
Definition, английский
- The fidelity of a television system to the original scene.
- Also called resolution. the fidelity with which detail is reproduced by a television system ranging from a fuzzy to a sharp appearance.
- The fidelity of reproduction of the pattern edge relative to the original master
- N дефиниция, определе- ние
- A verbal representation of a concept which serves to differentiate it from related concepts and allows humans to recognize and agree on the concept.
- Description of linear demarcation sensitivity or the detail sharpness of object outline in a radiologic test image. it is a function of screen type, exposure geometry, radiation energy, and characteristics sensor (such as film).
- Описание чувствительности к линейной демаркации или четкости контуров объекта на радиологическом контрольном изображении. это зависит от типа экрана, геометрии экспозиции, энергии излучения и характеристик датчика (например, пленки).
Permutation, немецкий
Arrangement, английский
- Расположение; компоновка; устройство
- N упорядочение
- A custom-created layout of photos in an album.
- A predefined combination of grouped and sorted messages in table view.
Fundamental, английский
- A основной; ко- ренной; базисный, главный, существенный frequency fusing a использующий фузию
- The lowest frequency in a complex sound wave.
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Experimental design, английский
- This term overtly refers to the planning of a process of data collection. the term is also used to refer to the information necessary to describe the interrelationships within a set of data. such a description involves considerations such as number of cas
- Планирование эксперимента
Logistic regression, английский
- This relates to an experimental design for predicting a binary categorical (yes/no) outome on the basis of predictor variables measured on interval scales. for each of a set of values of the predictor variables, the outcomes are regarded as representing a
- Логистическая регрессия logistics1. материально-техническое обеспечение; 2. логистика (символическая логика)
- A specialized form of regression that can be used to generate regression functions for binary and ordinal variables. it is a generalized linear model, using a logistic function to link the expected value of the response with the linear model. among the reasons that it is preferred for variables of this type because it correctly handles the bounded responses and the dependence between the error and the mean. (see figure l.3.) see also: data mining, linear regression. figure l.3 —
- A statistical method for analyzing the probability that multiple factors contribute to a state. logo (n)
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