نتایج جستجو برای: random regression models

تعداد نتایج: 1382355  

پایان نامه :0 1392

nowadays in trade and economic issues, prediction is proposed as the most important branch of science. existence of effective variables, caused various sectors of the economic and business executives to prefer having mechanisms which can be used in their decisions. in recent years, several advances have led to various challenges in the science of forecasting. economical managers in various fi...

Journal: :Journal of Statistical Planning and Inference 2010

Journal: :Journal of Consulting and Clinical Psychology 1994

Journal: :iranian journal of applied animal science 2015
p. zamani m.r. moradi d. alipour a. ahmadi

the aim of the present study was the estimation of (co) variance components and genetic parameters for body weight of moghani sheep, using random regression models based on b-splines functions. the data set included 9165 body weight records from 60 to 360 days of age from 2811 moghani sheep, collected between 1994 to 2013 from jafar-abad animal research and breeding institute, ardabil province,...

Journal: :Photogrammetric Engineering & Remote Sensing 2016

Journal: :علوم دامی ایران 0
پویا زمانی دانشیار، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا ملیحه امیرآبادی فراهانی دانش آموخته کارشناسی ارشد ژنتیک و اصلاح نژاد دام، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا حسن علی عربی دانشیار، گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا مصطفی ملکی استادیار گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا

the present study was carried out to compare different random regression models to estimate variance components of lamb's average birth weight per lambing (abwll) in mehraban sheep. the data were 5,559 abwll records of 2,244 mehraban ewes. the random regression models consisted of namely, flock-year-season of lambing as fixed effect, a fixed regression to fit average trajectory of the popu...

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