作者: Robert A. Muenchen

Stata is the most flexible and extensible data analysis package available from a commercial vendor. R is a similarly flexible free and open source package for data analysis, with over 3, 000 add-on p …

R is a powerful and free software system for data analysis and graphics, with over 5, 000 add-on packages available. This book introduces R using SAS and SPSS terms with which you are already …

While SAS and SPSS have many things in common, R is very different. My goal in writing this book is to help you translate what you know about SAS or SPSS into a working knowledge of R as quickly and …