R for Dummies Tapa blanda - 2015 - 2nd Edición

Descripción de contraportada

Learn to:

• Use R for data analysis and processing
• Write functions and scripts for repeatable analysis
• Create high-quality charts and graphics
• Perform statistical analysis and build models

All the R you need for statistical and data analysis, explained in plain English!

Do you have to use R on the job, but you don't know much about programming? Relax! Here's a quick and painless guide to using R for all sorts of statistical and data analysis. Through real-world examples and step-by-step exercises you'll learn how to reshape and manipulate data, perform calculations, create graphical representations, and more.

• Get started with R -- acquire and install R, learn what makes R unique, compare code editors, and write your first R script
• Play well with others -- see how R interacts with Excel and other programs and why statisticians and data analysts favor it
• R ABCs -- make your code clear and explore functions and arguments
• A calculating side -- take advantage of R's calculating power, working with numbers, infinity, missing values, mathematical functions, and vectors
• Get textual -- use character vectors for text data, manipulate text, and work with strings and factors
• Data tells a tale -- manipulate and process data using subsets, merge data from different sources, sort it, and summarize using statistical techniques
• Go graphic -- present your data visually using plots and lattice graphics

Open the book and find:

• User packages that extend R
• Tips for getting data into and out of R
• How R handles basic arithmetic
• What to do with regression models
• Advice on managing the logical flow
• Effective debugging strategies
• How to incorporate dates and times
• Additional graphics packages you can use