Manipulating Maps and Images with R

Statistical Analysis with R Essentials For Dummies

Here are some packages and functions to help you get started using R to draw maps and to process images.

Packages and Functions for Plotting Maps and for Processing Images

Package	Function	What it does
`maps`	`map_data()`	Returns a data frame of latitudes and longitudes
`ggmaps`	`geocode()`	Returns latitude and longitude of a place-name
`magick`	`image_read()`	Reads an image into R and turns it into a magick object
`magick`	`image_resize()`	Resizes an image
`magick`	`image_rotate()`	Rotates an image
`magick`	`image_flip()`	Rotates an image on a horizontal axis
`magick`	`image_flop()`	Rotates an image on a vertical axis
`magick`	`image_annotate()`	Adds text to an image
`magick`	`image_background()`	Sets the background for an image
`magick`	`image_composite()`	Combines images
`magick`	`image_morph()`	Makes one image appear to gradually become (morph into) another
`magick`	`image_animate()`	Puts an animation into the RStudio Viewer window
`magick`	`image_apply()`	Applies a function to every frame in an animated GIF
`magick`	`image_write()`	Saves an animation as a reusable GIF

About This Article

About the book author:

Joseph Schmuller, PhD, is a cognitive scientist and statistical analyst. He creates online learning tools and writes books on the technology of data science. His books include R All-in-One For Dummies and R Projects For Dummies.