This article aims to describe the process and results of community service activities that seek improve knowledge skills IAIQ (Institute Islamic Religion Quran) al-Ittifaqiah Indralaya students in processing statistical data with R software. The activity was carried out for two days. first day adopted tutorial lecture method, which included discussion, questions, answers. While second focused o...

The software for spatial econometrics available in the R system statistical computing is reviewed. methods are illustrated a historical perspective, highlighting main lines of development and employing historically relevant datasets examples. Estimators tests cross-sectional panel models based either on maximum likelihood or generalized moments presented. paper concluded reviewing some current ...

This document provides a tutorial introduction to the zipfR package (Evert and Baroni, 2007) for Large-Number-of-Rare-Events (LNRE) modeling of lexical distributions (Baayen, 2001). We assume that R is installed on your computer and that you have basic familiarity with it. If this is not the case, please start by visiting the R page at http://www.r-project.org/. The page provides links to downl...

soil characteristics is very important in water erosion processes. the present investigation was conducted in gully lands of ardebil province, iran, to assess the role of soil texture and structure on aggregate stability using wet sieve method. to achieve the study purposes, mean weighted diameter of aggregates was calculated, and its relationships with lime and clay percentages, sodium absorpt...