Master the syntax for working with R's plotting functions in graphics and stats in this easy reference to formatting plots. The approach in Visualizing Data in R 4 toward the application of formatting in ggplot() will follow the structure of the formatting used by the plotting functions in graphics and stats. This book will take advantage of the new features added to R 4 where appropriate including a refreshed color palette for charts, Cairo graphics with more fonts/symbols, and improved performance from grid graphics including ggplot 2 rendering speed.

Visualizing Data in R 4 starts with an introduction and then is split into two parts and six appendices. Part I covers the function plot() and the ancillary functions you can use with plot(). You'll also see the functions par() and layout(), providing for multiple plots on a page. Part II goes over the basics of using the functions qplot() and ggplot() in the package ggplot2. The default plots generated by the functions qplot() and ggplot() give more sophisticated-looking plots than the default plots done by plot() and are easier to use, but the function plot() is more flexible. Both plot() and ggplot() allow for many layers to a plot.

The six appendices will cover plots for contingency tables, plots for continuous variables, plots for data with a limited number of values, functions that generate multiple plots, plots for time series analysis, and some miscellaneous plots. Some of the functions that will be in the appendices include functions that generate histograms, bar charts, pie charts, box plots, and heatmaps.

You will:

Use R to create informative graphics
Master plot(), qplot(), and ggplot()
Discover the canned graphics functions in stats and graphicsFormat plots generated by plot() and ggplot()

Auteur
Margot Tollefson, PhD is a semi-retired freelance statistician, with her own consulting business, Vanward Statistics. She received her PhD in statistics from Iowa State University and has many years of experience applying R to statistical research problems. Dr. Tollefson has chosen to write this book because she often creates graphics using R and would like to share her knowledge and experience. Her professional blog is on WordPress at vanwardstat. Social media: @vanstat

Contenu
1)Introduction: plot(), qplot(), and ggplot(), Plus Somea)plot() arguments, ancillary functions, and methods; par() and layout()b)qplot() and ggplot() aesthetics, geometries, and other useful functionsc)other plotting functions in graphics and stats
Part I. An Overview of plot()
2)The plot() Functiona)what the function is and how the function worksb)will use method .xy for example
3) The Arguments to plot()a)Type of plot, axis labels, plot titles, display formatb)Plotting characters, character size, fonts, colors, line styles and widths
4)Ancillary Functions to use with plot()a)axis(), box(), clip(), grid(), legend(), mtext(), rug()b)abline(), contour(), curve(), lines(), polypath()c)arrows(), image(), points(), polygon(), rect(), segments(), symbols(), text()d)axTicks(), identify(), locator(), pch(), strwidth(),
5)The Methods for plot()a)What are methods?b)Methods in the graphics packagec)Methods in the stats package
6)How to Use the Functions par() and layout()a)What par() doesb)Arguments specific to par()c)Multiple plots
Part II. A look at the ggplot2 Package
7)The Functions qplot(), ggplot(), and the Specialized Notation in ggplot2a)Working with qplot()b)The ggplot() functionc)Specialized notation
8)Themesa)The theme() functionb)The element*() functions
9) Aesthetics and Geometriesa)The aes() functionb)The geom() functions
10)Controlling the Appearancea)The annotate_() functionsb)The coord*() functionsc)The facet() functionsd)The guide_() functionse)The position*() functionsf)The scale() functionsg)The stat_() functions
Appendix I. Plots for Contingency TablesAppendix II. Plots for Continuous VariablesAppendix III. Plots for Data with a Limited Number of ValuesAppendix IV. Functions that Generate Multiple PlotsAppendix V. Plots for Time SeriesAppendix VI. Miscellaneous Plots