Data/hora: 09/06/2024 10:31:05

Biblioteca(s): 	Embrapa Mandioca e Fruticultura; Embrapa Trigo.	
Data corrente: 	18/08/1995	
Data da última atualização: 	15/09/1995	
Autoria: 	WILKINSON, G. N.; ECKERT, S. R.; HANCOCK, T. W.; MAYO, O.	
Afiliação: 	Waite Agricultural Research Institute, University of Adelaide, Adelaide, Australia.	
Título: 	Nearest neighbour (NN) analysis of field experiments.	
Ano de publicação: 	1983	
Fonte/Imprenta: 	J. R. Statist. Soc. v.45, n.2, p.151-211, 1983.	
Idioma: 	Inglês	
Conteúdo: 	The paper is in two parts. Part I presents results of a Monte Carlo randomization study of Papadakis's covariance method of NN analysis which show that (i) a not-iterated Papadakis analysis tends to be conservatively biassed; (ii) iteration of the analysis as suggested by Bartlett (1978) leads to substantial positive bias in the treatment F ratio; (iii) the method is very inefficient when there are substantial trend effects in the data. A theoretical explanation of these results is given. Part II describes a new method of NN analysis discovered by the first author and developed in collaboration with the co-authors. The method is essentially a "moving-block" analogue of classical forms of analysis for "fixed"blocks (or rows, columns). It avoids the defects of  Papadakis's method and leads to approximately unbiassed analyses. It is nearly always and often substantially more efficient on average than classical analyses of complete or incomplete block experiments, and also more efficient than standard analyses of Latin or lattice square designs if there are appreciable  row X column interactions in the data. New criteria of design for NN balance are described. Validity of the new method under randomization  is demonstrated empirically with Monte Carlo studies.	
Palavras-Chave: 	Análise estatística experimental; Analysis of field experiments; Delineamento vizinho mais próximo; Intra-N analysis; Método de Monte Carlo; Método de Papadakis; Monte carlo; Nearest neighbour methods; NN analysis; Papadakis method; Papadakis's method; Randomization distributions.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
Exemplares: 	CNPMF - (15816-1) - ADC - SP - -- - S5105 -  - S5105 - DIS
CNPMF - (16128-1) - ADC - SP - -- - S7760 -  - S7760 - DIS
CNPT - (28233-1) - ADD - SP - -- - 14314 -  - 14314 - DIS