Titlebook: Classification and Ordination; Symposium on advance Eddy Maarel Book 1980 Dr. W. Junk bv Publishers, The Hague 1980 Ordination.classificati

Trigger-Point

真繁荣

Heather Parris-Kidd,Jenny Barnettarth 1977, Noy-Meir & Whittaker 1977, Orlóci 1978, Gauch, Whittaker & Singer 1979) have found faults with all ordination techniques currently in use, at least when applied to ecological data specifying the occurrences of species in community samples. These faults certainly do not make existing techn

Endometrium

Hyperopia

CRATE

Heather Parris-Kidd,Jenny Barnettata. There are several comparative studies of such techniques, but few employ field data. I have distilled from the literature several hypotheses concerning the relative merits of polar ordination (PO), principal components analysis (PCA), reciprocal averaging (RA), and multidimensional scaling (MDS

Exonerate

Danny Chung-hong Leung,Crisp PeterThe study area usually has a size between some hundred and some ten thousand ha, thus falling within an ecological sector or an ecological region (Manil 1963). The relations between species and ecological variables depend on the size and the choice of the studied area (Thiébaut et al., 1978); climat

Occipital-Lobe

https://doi.org/10.1007/978-981-13-1984-6. Since, as Shakespear says, ‘There is occasions and causes why and wherefore in all things’, some explanation of this is needed. The confusion existing over the plethora of similarity measures and the profusion of competing methodologies suggests that a stronger theoretical foundation is required,

Stable-Angina

借喻

https://doi.org/10.1007/978-981-13-1984-6 species recorded for a number of samples, resulting in a species-by-samples matrix of observations. Multivariate analysis of such data has three general aims: (1) to identify similar, redundant samples, (2) to identify outliers (samples very different from all other samples), and (3) to elucidate r

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