نتایج جستجو برای: linear regression coefficient

تعداد نتایج: 867449  

Journal: :gastroenterology and hepatology from bed to bench 0
mohamad amin pourhoseingholi soghrat faghihzadeh manijeh habibi azadeh safaee fatemeh qafarnejad mohammad rostami nejad

aim : to determine the associated factors of reflux duration, using quantile regression model. background : reflux is one of the most prevalent gastrointestinal disorders.  statistical tools are widely used to assess the associated factors on reflux severity and frequency. patients and methods : a door to door questionnaire has been used to evaluate gastrointestinal symptoms including reflux an...

ژورنال: اندیشه آماری 2016
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‎In this paper‎, ‎we have studied the analysis an interval linear regression model for fuzzy data‎. ‎In section one‎, ‎we have introduced the concepts required in this thesis and then we illustrated linear regression fuzzy sets and some primary definitions‎. ‎In section two‎, ‎we have introduced various methods of interval linear regression analysis‎. ‎In section three‎, ‎we have implemented nu...

2013
Jiti Gao Peter C. B. Phillips

This paper studies a general class of nonlinear varying coefficient time series models with possible nonstationarity in both the regressors and the varying coefficient components. The model accommodates a cointegrating structure and allows for endogeneity with contemporaneous correlation among the regressors, the varying coefficient drivers, and the residuals. This framework allows for a mixtur...

2010
Daniela Jarušková D. Jarušková

The paper deals with the asymptotic distribution of the least squares estimator of a change point in a regression model where the regression function has two phases — the first linear and the second quadratic. In the case when the linear coefficient after change is non-zero the limit distribution of the change point estimator is normal whereas it is non-normal if the linear coefficient is zero.

Journal: :چغندرقند 0
ساسان کشاورز کارشناس ارشد اصلاح نباتات از دانشگاه آزاد اسلامی واحد کرج محمود مصباح عضو هیئت علمی مؤسسه تحقیقات چغندرقند ذبیح اله رنجی عضو هیئت علمی مؤسسه تحقیقات چغندرقند رضا امیری کارشناس ارشد مؤسسه تحقیقات چغندرقند

to perform stability analysis and study g*e interaction, eight commercial sugar beet varieties were evaluated in eight major sugar beet producing areas of karaj, mashad, miandoab, esfahan, shiraz, kermanshah, moghan and hamadan in three years using a randomized complete block design with four replications. the evaluated varieties were br1, 7233, pp.8, ic, 7233-p29, pp22, h5505 and 41rt. having ...

Journal: :acta medica iranica 0
farzin farahbod department of public administration, rasht branch, islamic azad university, guilan, iran. mehrdad goudarzvand chegini department of public administration, rasht branch, islamic azad university, guilan, iran. leila kouchakinejad eramsadati guilan road trauma research center, guilan university of medical sciences, guilan, iran. zahra mohtasham-amiri guilan road trauma research center, guilan university of medical sciences, guilan, iran.

social capital is a multi-faceted phenomenon in social sciences that massively affects many social fields. it can be a helpful factor in promoting health. among the groups with high burnout, nurses have always shown higher levels of burnout. studies have revealed that social capital can be an important factor affecting burnout. this study aimed to determine the extent of the effect of social ca...

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