I need really help

Hello Mohammed,

  I'm student doing master in statistics, I'd like to know how i can set data in R and apply meta-analysis. i have tries many ways but I'm really stuck.

"PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code."

Show us what you tried, and be more specific in want you want to do.
For novices Rcmdr is often a helpful reference, since you can perform
a good deal of basic statistics analyses graphically, that is by only
point-and-clicking.
Liviu