SOFA Statistics version 1.1.4 is available for dowload.
Read about the improvements here : Further improvements in 1.1.4 « Statistics Open For All.
Download here: http://www.sofastatistics.com/downloads.php
ggplot2: Elegant Graphics for Data Analysis (Use R)
This book will be useful to everyone who has struggled with displaying their data in an informative and attractive way. You will need some basic knowledge of R (i.e. you should be able to get your data into R), but ggplot2 is a mini-language specifically tailored for producing graphics, and you'll learn everything you need in the book. After reading this book you'll be able to produce graphics customized precisely for your problem.
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