نتایج جستجو برای: beta regression model
تعداد نتایج: 2487397 فیلتر نتایج به سال:
nowadays, one of the social problems that have occupied most social science researchers’ mind is insecurity in cities. the expansion of social insecurities, robberies, irresponsible and anti-social behaviors these days have converted to acute from and changed from a social phenomenon to a social problem. these factors not only endanger social security and well-being but also impose huge financi...
almolookhiyeh (corchorus olitorius l.) known in the world as a valuable medicinal plant that was produced for the first time in iran in 2011. this study was aimed to quantify germination response of almolookhiyeh to temperature. for this purpose, seeds were exposed to different constant temperatures (10 ,15, 20, 25, 30, 35, 40, 45 and 50°c) in seed research lab, gorgan university of agricultura...
Background and Objective: Physical activity is one of the most important aspects of health promotion and one of the predictors of death and disability worldwide. In this study, we aimed to investigate the factors related to intention to perform physical activity based on the theory of planned behavior among high school female students of Ahvaz city, Iran. Materials and Methods: This descriptiv...
In this study, in order to assess and evaluate the role of the budget in the regional disparity of the country, the absolute beta and beta convergence of per capita income of the provinces of the country with the presence of allocation of government funds to the provinces variable's during the period from 1389 to 1393, with using panel spatial econometrics method. Based on the results, the slop...
Planning and implementing strategies and programs to develop tourism has long been a priority issue for policy makers and decision makers. Hence, the interest in quantitative methods for assessing the extent to which possible modifications of some determinants can affect the tourism flows of the destination country. Besides, over the last decades, in Italy as well as in many other destinations ...
In this paper we consider the beta regression model recently proposed by Ferrari and Cribari-Neto [2004. Beta regression for modeling rates and proportions. J. Appl. Statist. 31, 799–815], which is tailored to situations where the response is restricted to the standard unit interval and the regression structure involves regressors and unknown parameters. We derive the second order biases of the...
The capital asset pricing model provides an equilibrium model to show the relationship between risk and return on assets. One of the economic areas is herd behavior, which has attracted a lot of attention in recent decades. Therefore, the present study deals with the herd behavior in the Iranian economy on the efficiency criteria of the asset pricing model. The research method used in this rese...
This introduction to the R package betareg is a (slightly) modified version of CribariNeto and Zeileis (2010), published in the Journal of Statistical Software. A follow-up paper with various extensions is Grün, Kosmidis, and Zeileis (2012) – a slightly modified version of which is also provided within the package as vignette("betareg-ext", package = "betareg") The class of beta regression mode...
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