Assessment of heterogeneity of residual variances using changepoint techniques

Autor: Toro Miguel A, Carabaño Maria J, Rekaya Romdhane
Jazyk: German<br />English<br />French
Rok vydání: 2000
Předmět:
Zdroj: Genetics Selection Evolution, Vol 32, Iss 4, Pp 383-394 (2000)
Druh dokumentu: article
ISSN: 1297-9686
0999-193X
DOI: 10.1186/1297-9686-32-4-383
Popis: Abstract Several studies using test-day models show clear heterogeneity of residual variance along lactation. A changepoint technique to account for this heterogeneity is proposed. The data set included 100 744 test-day records of 10 869 Holstein-Friesian cows from northern Spain. A three-stage hierarchical model using the Wood lactation function was employed. Two unknown changepoints at times T1 and T2, (0
Databáze: Directory of Open Access Journals
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