detrended data
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Detrended Correspondence Analysis — (DCA) is a multivariate statistical technique widely used by ecologists to find the main factors or gradients in large, species rich but usually sparse data matrices that typify ecological community data. For example, Hill and Gauch (1980, p. 55) … Wikipedia
Detrended correspondence analysis — (DCA) is a multivariate statistical technique widely used by ecologists to find the main factors or gradients in large, species rich but usually sparse data matrices that typify ecological community data. For example, Hill and Gauch (1980, p. 55) … Wikipedia
Trend estimation — is a statistical technique to aid interpretation of data. When a series of measurements of a process are treated as a time series, trend estimation can be used to make and justify statements about tendencies in the data. By using trend estimation … Wikipedia
Seriation (archaeology) — In archaeology, seriation is a relative dating method in which assemblages or artifacts from numerous sites, in the same culture, are placed in chronological order. Where absolute dating methods, such as carbon dating, cannot be applied,… … Wikipedia
Ordination (statistics) — In multivariate analysis, ordination is a method complementary to data clustering, and used mainly in exploratory data analysis (rather than in hypothesis testing). Ordination orders objects that are characterized by values on multiple variables… … Wikipedia
Principal component analysis — PCA of a multivariate Gaussian distribution centered at (1,3) with a standard deviation of 3 in roughly the (0.878, 0.478) direction and of 1 in the orthogonal direction. The vectors shown are the eigenvectors of the covariance matrix scaled by… … Wikipedia
List of mathematics articles (D) — NOTOC D D distribution D module D D Agostino s K squared test D Alembert Euler condition D Alembert operator D Alembert s formula D Alembert s paradox D Alembert s principle Dagger category Dagger compact category Dagger symmetric monoidal… … Wikipedia
Correspondence analysis — (CA) is a multivariate statistical technique proposed[1] by Hirschfeld[2] and later developed by Jean Paul Benzécri.[3] It is conceptually similar to principal component analysis, but applies to categorical rather than continuous data. In a… … Wikipedia
Landscape ecology — is the science and art of studying and improving the relationship between spatial pattern and ecological processes on a multitude of scales and organizational levels (Wu 2006, 2008; Wu and Hobbs 2007). In a broad sense, landscape ecology… … Wikipedia
DFA — may refer to: Directory of Financial Advisers, DFA a private directory of Financial Advisers in New Zealand Contents 1 Mathematics, science, and technology 1.1 Computing … Wikipedia
Great Depression in Canada — Canada was hit hard by the Great Depression. Between 1929 and 1933, the gross national product dropped 40% (compared to 37% in the US). Unemployment reached 27% at the depth of the Depression in 1933. Many businesses closed, as corporate profits… … Wikipedia
