Publication

Statistical analysis of the ohmic H-mode accessibility in TCV

Yves Martin
1998
Journal Articles

Abstract

In TCV, L-mode to H-mode transitions have been observed in a wide variety of plasma configurations. Two statistical methods, discriminant analysis and a nonlinear system identification, have been used to localize the boundary between the L-mode and H-mode domains in the multidimensional operational space. For control purposes, an estimate of the shortest distance between the actual position in the operational domain and the boundary is defined, and the parameters to modify in order to reach the transition are identified.

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https://infoscience.epfl.ch/entities/publication/706aaaf4-b623-40ee-9a11-5dd7f0a17297

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Yves Martin
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/706aaaf4-b623-40ee-9a11-5dd7f0a17297

About this result

Related concepts (31)

Statistics

Statistics (from German: Statistik, () "description of a state, a country") is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a statistical model to be studied. Populations can be diverse groups of people or objects such as "all people living in a country" or "every atom composing a crystal".

Statistical inference

Statistical inference is the process of using data analysis to infer properties of an underlying distribution of probability. Inferential statistical analysis infers properties of a population, for example by testing hypotheses and deriving estimates. It is assumed that the observed data set is sampled from a larger population. Inferential statistics can be contrasted with descriptive statistics. Descriptive statistics is solely concerned with properties of the observed data, and it does not rest on the assumption that the data come from a larger population.

Statistical hypothesis testing

A statistical hypothesis test is a method of statistical inference used to decide whether the data at hand sufficiently support a particular hypothesis. Hypothesis testing allows us to make probabilistic statements about population parameters. While hypothesis testing was popularized early in the 20th century, early forms were used in the 1700s. The first use is credited to John Arbuthnot (1710), followed by Pierre-Simon Laplace (1770s), in analyzing the human sex ratio at birth; see .

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Statistical analysis of the ohmic H-mode accessibility in TCV

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