The Korean Journal of Applied Statistics (응용통계연구)

The Korean Statistical Society (한국통계학회)
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Multifactor Dimensionality Reduction(MDR) Analysis by Dummy Variables

더미(dummy) 변수를 활용한 다중인자 차원 축소(MDR) 방법

  • Published : 2009.04.30
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Abstract

Multiple genes interacting is a difficult due to the limitations of parametric statistical method like as logistic regression for detection of gene effects that are dependent solely on interactions with other genes and with environmental exposures. Multifactor dimensionality reduction(MDR) statistical method by dummy variables was applied to identify interaction effects of single nucleotide polymorphisms(SNPs) responsible for longissimus mulcle dorsi area(LMA), carcass cold weight(CWT) and average daily gain(ADG) in a Hanwoo beef cattle population.

통계모형의 상호작용 효과를 분석하기 위해 비모수적인 방법인 다중인자 차원 축소(MDR) 방법을 사용해왔다. MDR 방법은 사례-대조 데이터에만 적용 할 수 있다. 본 논문에서는 연속형 데이터에도 적용 할 수 있는 더미(dummy) 변수를 활용한 MDR방법을 소개한다. 아울러 이를 통해 한우의 주요 경제형질인 등심단면적 (longissimus muscle dorsi area: LMA), 도체중(carcass cold weight: CWT), 일당증체량(average daily gain: ADC)에 영향을 주는 우수 유전자 단일염기다형성(SNP)을 규명한다.

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