The Korean Journal of Applied Statistics (응용통계연구)

The Korean Statistical Society (한국통계학회)
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A Comparison Study for Ordination Methods in Ecology

생태학의 통계적 서열화 방법 비교에 관한 연구

  • Received : 2014.10.22
  • Accepted : 2015.01.20
  • Published : 2015.02.28
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Abstract

Various kinds of ordination methods such as correspondence analysis and canonical correspondence analysis are used in community ecology to visualize relationships among species, sites, and environmental variables. Ter Braak (1986), Jackson and Somers (1991), Parmer (1993), compared the ordination methods using eigenvalue and distance graph. However, these methods did not show the relationship between population and biplot because they are only based on surveyed data. In this paper, a method that measures the extent to show population information to biplot was introduced to compare ordination methods objectively.

군생태학에서 종, 장소 그리고 환경변수의 관계를 시각적으로 보기 위해 대응분석, 정준대응분석 등 다양한 서열화방법들을 사용한다. Ter Braak (1986), Jackson 등 (1991), Parmer (1993) 등은 고유값 및 거리그래프를 이용하여 서열화방법들을 비교하고 있는데, 이 방법들은 조사된 데이터에 근거하고 있기 때문에, 모집단과 행렬도의 관계를 보여주지는 못한다. 따라서, 본 논문에서는 행렬도에 모집단 정보의 표현정도를 측정하는 방법을 소개하고, 이를 활용하여 서열화방법들을 객관적으로 비교하였다. 비교결과, 정준대응분석은 대응분석과 유사한 정분류율을 유지하면서도 환경정보를 이차원 공간에 표현할 수 있는 장점을 지닌 분석임을 확인하였다.

Keywords

References

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  1. Applications of Bootstrap Methods for Canonical Correspondence Analysis vol.28, pp.3, 2015, https://doi.org/10.5351/KJAS.2015.28.3.485