نتایج جستجو برای: parametric or non

تعداد نتایج: 4433239  

Journal: :journal of agricultural science and technology 2015
v. rasoli e. farshadfar j. ahmadi

to evaluate genotype × environment interaction (gei) of grapevine, 20 genotypes of grapevines with russian origin were evaluated at one location in urmia and four locations in takestan (two locations under full irrigation and two locations under drought stress). this research was performed in a randomized complete block design with three replications and three vines in each plot, in 2012-2013 s...

Gh. Jahanshahloo M. Rahmani

In this paper we develop an approach that synthesizes the best features of the two main methods in the estimation of production efficiency. Specically, our approach first allows for statistical noise, similar to Stochastic frontier analysis, and second, it allows modeling multiple-inputs-multiple-outputs technologies without imposing parametric assumptions on production relationship, similar to...

Journal: :تحقیقات اقتصادی 0
غلامرضا کشاورز دانشیار دانشگاه صنعتی شریف گروه اقتصاد - مرتضی باقری قنبرآبادی فارغ التحصیل دانشگاه صنعتی شریف گروه اقتصاد

iranian female participation rate in the labor market of iran in the recent decade shows a increasing trend which amounted from 8% in 1999 to 18% in 2005.using parametric and non-parametric econometrics methods, in this research we aim to study the behavior of individual married females labor participation. our dataset consist of the annually budget survey of 2006 which is reported by statistic...

Journal: :international journal of industrial mathematics 0
m. rahimpoor department of industrial engineering, kharazmi university, tehran, ‎iran‎. a. heshmati department of of economics, sogang university, seoul, ‎korea‎. a. ahmadizad department of systems management, university of kurdistan, sanandaj, ‎iran‎‎.

introduction of human development index (hdi) by undp in early 1990 followed a surge in use of non-parametric and parametric indices for measurement and comparison of countries performance in development, globalization, competition, well-being and etc. the hdi is a composite index of three indicators. its components are to reflect three major dimensions of human development: longevity, knowledg...

ژورنال: پژوهش در پزشکی 2010
زائری, فرید, سادات هاشمی , سید مهدی, قربانی*, راهب, کاوه‌یی, بهروز,

Abstract Background: Various studies have shown the age changes of menopause in Iran, in a relatively wide area, approximately from 46 to 51 years. This broad range of the changes can attribute not only to the essential difference between women of different regions, but could also be related to methodological problems. Because the model of menopause age could be estimated by cohort or a cros...

Journal: :international journal of agricultural management and development 2013
ebrahim moradi mosayeb pahlavani ahmad akbari hossain mehrabi bashrabadi

Journal: :journal of research in health sciences 0
ali reza soltanian hossein mahjub

background : kernel smoothing method is a non-parametric or graphical method for statistical estimation. in the present study was used a kernel smoothing method for finding the death hazard rates of patients with acute myocardial infarction. methods : by employing non-parametric regression methods, the curve estimation, may have some complexity.  in this article, four indices of epanechnikov, b...

Journal: :iranian journal of cancer prevention 0
alireza abadi dept. of community medicine and health, shahid beheshti university of medical sciences, tehran, iran farzaneh ahmadi dept. of biostatistics, school of paramedical, shahid beheshti university of medical sciences, tehran, iran hamaid alavi majd dept. of biostatistics, school of paramedical, shahid beheshti university of medical sciences, tehran, iran mohammad esmaeil akbari cancer research center, shahid beheshti university of medical sciences, tehran, iran zainab abolfazli khonbi dept. of english language, kashan university of medical sciences, kashan, iran esmat davoudi monfared dept. of community medicine and health, shahid beheshti university of medical sciences, tehran, iran

background: colon cancer is the third cause of cancer deaths. although colon cancer survival time has increased in recent years, the mortality rate is still high. the cox model is the most common regression model often used in medical research in survival analysis, but most of the time the effect of at least one of the independent factors changes over time, so the model cannot be used. in the c...

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