نشریه اندیشه آماری
سال هجدهم شماره 1 (پیاپی 35، بهار و تابستان 1392)

Meta-Analysis means a statistical analysis on the results of their findings is to combine a large number of independent studies. Meta-Analysis software is needed to be done for convenience، Statistical Software for Meta-Analysis is available in many statistical packages available in the present study provide software R is for Meta-Analysis. First، a brief description of the Meta-Analysis، Statistical methods used in the software and can be used to do it، then the software packages R introduced rmeta functions in the package are described for each of the an example will be given functions.

T‎his paper is a brief introduction to the concepts، methods ‎and ‎algorithms ‎for ‎data ‎mining ‎in ‎statistical ‎software R ‎using a‎ ‎package ‎named ‎Rattle. Rattle ‎provides a‎ ‎good ‎graphical ‎environment ‎to ‎perform ‎some ‎of ‎the ‎procedures ‎and ‎algorithms ‎without ‎the ‎need ‎for ‎programming. ‎Some ‎parts ‎of ‎the ‎package ‎will ‎be ‎explained ‎by a‎ ‎number ‎of ‎examples. ‎

The search designs first introduced in Srivastava (1975) is reviewed. In a ceritan problem، there may be some search designs with same runs. Some criteria for evaluation of search designs are the other topic in the paper. Criteria based on searching probability and expected Kullback- Leibler are reviewd. Some examples are given in each case.

Nowadays there has been an increasing interest in more flexible distributions like skew distributions that can represent observed behavior more closely. These distributions are often used in the medical and behavioral sciences for real-valued random variables whose distributions are not symmetric. Because high Application of skew distributions، in this paper after a brief review of famous skew distributions، normal، t، skew normal and skew t distributions were fitted on a real data set taken from Mobarakeh Steel Company medical data and then best fit was selected using AIC.