A. R. Arabpour
Department of Statistics, Faculty of Mathematics and Computer, Shahid Bahonar University of Kerman, Kerman, Iran.
[ 1 ] - Risk factors affecting the culling of Iranian Holstein dairy cows
This experiment was conducted to evaluate the association between risk factors and the risk of culling in Iranian Holstein cows. The data consisted of 329,772 lactation records obtained from the Animal Breeding Center of Iran (2003 - 2012) and logistic regression was applied to investigate the associations between the predictor and response variables. The response variable in this experiment wa...
[ 2 ] - A WEIGHTED LINEAR REGRESSION MODEL FOR IMPERCISE RESPONSE
A weighted linear regression model with impercise response and p-real explanatory variables is analyzed. The LR fuzzy random variable is introduced and a metric is suggested for coping with this kind of variables. A least square solution for estimating the parameters of the model is derived. The result are illustrated by the means of some case studies.
[ 3 ] - LINEAR HYPOTHESIS TESTING USING DLR METRIC
Several practical problems of hypotheses testing can be under a general linear model analysis of variance which would be examined. In analysis of variance, when the response random variable Y , has linear relationship with several random variables X, another important model as analysis of covariance can be used. In this paper, assuming that Y is fuzzy and using DLR metric, a method for testing ...
[ 4 ] - ANALYSIS OF COVARIANCE BASED ON FUZZY TEST STATISTIC
One-way analysis of covariance is a popular and common statisticalmethod, wherein the equality of the means of several random variables whichhave a linear relationship with a random mathematical variable, is tested. Inthis study, a method is presented to improve the one-way analysis of covari-ance when there is an uncertainty in accepting the statistical hypotheses. Themethod deals with a fuzzy...
[ 5 ] - تبیین رابطه عوامل فردی با مهارت سیاسی مدیران در سازمان دولتی با توجه به نقش تعدیل‌کننده اراده سیاسی
The purpose of this study is to identify the individual factors affecting the political skills of managers in the public sector. In terms of purpose, this research is applied-developmental and regarding data collection, it is descriptive using survey method. To analyze the collected data, structural equation modeling with partial least squares approach was used with Smart PLS3 software. Th...
[ 6 ] - توزیع مقادیر کرانگین موزون و ویژگی‌های آن
در این مقاله یک توزیع وزن‌دار شده جدید بر پایه توزیع مقادیر کرانگین معرفی می‌گردد. ویژگی‌ها و مشخصه‌های اساسی این توزیع از قبیل تابع توزیع تجمعی، تابع مولد گشتاور، ضریب چولگی و کشیدگی مورد بررسی قرار می‌گیرد. پس از به دست آوردن برآوردگرهای ماکسیمم درستنمایی پارامترها، دو مثال واقعی برای بررسی مناسب بودن مدل و عملکرد برآوردگرها ارائه شده است.
[ 7 ] - توزیع بیرنبام-ساندرز برپایه توزیع چوله-لاپلاس
در این مقاله تعمیم دیگری از توزیع بیرنبام-ساندرز برپایه توزیع چوله-لاپلاس ارایه می‌شود. همچنین برخی از ویژگی‌های توزیع معرفی شده به همراه برآورد پارامترهای توزیع با استفاده از الگوریتم EM و برآورد خطاهای استاندارد ارائه شده است. در نهایت نیز یک مثال شبیه‌سازی شده و همچنین کاربرد برازش توزیع روی دو مجموعه داده واقعی مورد بررسی قرار گرفته شده است.
[ 8 ] - Interval linear regression
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...
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