نتایج جستجو برای: random effect model

تعداد نتایج: 3687722  

Journal: :Communications for Statistical Applications and Methods 2002

Objective: The main objective of this research was estimation of genetic parameters for five consecutive measurements of egg weights in Isfahan fowl using multi trait model and random regression models. Methods: The statistical models included generation-hatch as a fixed effect, weeks of age as a covariate and additive genetic and individual permanent environmental effects as random effects. Th...

Journal: :International Journal of Academic Research in Business and Social Sciences 2019

2013
Walter Bouwmeester Jos WR Twisk Teus H Kappen Wilton A van Klei Karel GM Moons Yvonne Vergouwe

BACKGROUND When study data are clustered, standard regression analysis is considered inappropriate and analytical techniques for clustered data need to be used. For prediction research in which the interest of predictor effects is on the patient level, random effect regression models are probably preferred over standard regression analysis. It is well known that the random effect parameter esti...

زایری, فرید, کاظم نژاد, انوشیروان, گیلانی, ندا,

Background and purpose: A low concentration of albumin is a predictor of mortality in end-stage renal disease. The aim of this study was to assess the factors influencing albumin serum amongst hemodialysis patients using random effects model. Materials and methods: In a retrospective cohort study, 297 hemodialysis patients (137 women and 160 men, mean age: 58.3 ± 15.86 and 59.1± 17.80 years,...

Journal: :Journal of Physics A: Mathematical and Theoretical 2011

Objective: The main objective of this research was estimation of genetic parameters for five consecutive measurements of egg weights in Isfahan fowl using multi trait model and random regression models. Methods: The statistical models included generation-hatch as a fixed effect, weeks of age as a covariate and additive genetic and individual permanent environmental effects as random effects. Th...

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