dnes akcia free book:
https://www.packtpub.com/packt/offers/free-learning

Use R's powerful graphing capabilities to design and create professional-level graphics
Learn how to use Base R to analyze your data and generate statistical graphs
Create attractive graphics using advanced functions such as qplot and ggplot for research and analysis
A step-by-step guide, packed with examples using real-world data sets that can prove helpful to R programmers


stiahnut sa to da tu:
https://kyberia.sk/id/8190026