In statistics, compositional data are quantitative descriptions of the parts of some whole, conveying exclusively relative information. Thisâ€¦Â (More)

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2011

2011

- Patrick Bahr, Tom Hvitved
- WGP@ICFP
- 2011

Building on Wouter Swierstra's Data <i>types à la carte</i>, we present a comprehensive Haskell library of <i>compositionalâ€¦Â (More)

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2011

2011

- Patrick Bahr, Tom Hvitved
- MSFP
- 2011

In previous work we have illustrated the benefits that compositional data types (CDTs) offer for implementing languages and inâ€¦Â (More)

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2011

2011

Abstract: Within the special geometry of the simplex, the sample space of compositional data, compositional orthonormalâ€¦Â (More)

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2009

2009

- Peter Filzmoser, Karel Hron, Clemens Reimann, Robert G. Garrett
- Computers & Geosciences
- 2009

Factor analysis as a dimension reduction technique is widely used with compositional data. Using the method for raw data or forâ€¦Â (More)

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2008

2008

Compositional data need a special treatment prior to correlation analysis. In this paper we argue why standard transformationsâ€¦Â (More)

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2008

2008

- K. Gerald van den Boogaart, Raimon Tolosana-Delgado
- Computers & Geosciences
- 2008

This contribution presents a new R package, called â€˜â€˜compositionsâ€™â€™. It provides tools to analyze amount or compositional dataâ€¦Â (More)

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2007

2007

Compositional data record the relative proportions of different components within a mixture, and arise frequently in many fieldsâ€¦Â (More)

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2007

2007

Outlier detection based on the Mahalanobis distance (MD) requires an appropriate transformation in case of compositional dataâ€¦Â (More)

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2007

2007

- Huiwen Wang, Qiang Liu, Henry M. K. Mok, Linghui Fu, Wai Man Tse
- European Journal of Operational Research
- 2007

Although Aitchisonâ€™s [Aitchison, J., 1986. The Statistical Analysis of Compositional Data, Chapman and Hall, London] method ofâ€¦Â (More)

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2007

2007

Preface These notes have been prepared as support to a short course on compositional data analysis. Their aim is to transmit theâ€¦Â (More)

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