<p><div><div><div><div data-show-faces="false" data-height="21" data-width="100" data-layout="button_count" data-send="true" data-href="https://www.r-bloggers.com/new-course-interactive-maps-with-leaflet-in-r/"></div></div><div></div></div><div></div></div>
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(This article was first published on <strong><a href="https://www.datacamp.com/community/blog/course-maps-leaflet-r"> DataCamp Community - r programming</a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
<p><center><a rel="nofollow" href="https://www.datacamp.com/courses/interactive-maps-with-leaflet-in-r?tap_a=5644-dce66f&tap_s=10907-287229" target="_blank"><img src="https://i0.wp.com/res.cloudinary.com/dyd911kmh/image/upload/f_auto,q_auto:best/v1530810895/leaflet_map_cczsha.png?w=456" data-recalc-dims="1"></a></center></p>
<p>Here is the course <a rel="nofollow" href="https://www.datacamp.com/courses/interactive-maps-with-leaflet-in-r?tap_a=5644-dce66f&tap_s=10907-287229" target="_blank">link</a>.</p>
<h2>Course Description</h2>
<p>Get ready to have some fun with maps! Interactive Maps with leaflet in R will give you the tools to make attractive and interactive web maps using spatial data and the tidyverse. In this course, you will create maps using the IPEDS dataset, which contains data on U.S. colleges and universities. Along the way, you will customize our maps using labels, popups, and custom markers, and add layers to enhance interactivity. Following the course, you will be able to create and customize your own interactive web maps to reveal patterns in your data.</p>
<h2>Chapter 1: Setting Up Interactive Web Maps (Free)</h2>
<p><center><a rel="nofollow" href="https://www.datacamp.com/courses/interactive-maps-with-leaflet-in-r?tap_a=5644-dce66f&tap_s=10907-287229" target="_blank"><img src="https://i1.wp.com/res.cloudinary.com/dyd911kmh/image/upload/f_auto,q_auto:best/v1530810622/choropleth-reduced_-_Becca_Robins_nqgh7p.png?w=456" data-recalc-dims="1"></a></center></p>
<p>This chapter will introduce students to the htmlwidgets package and the leaflet package. Following this introduction, students will build their first interactive web map using leaflet. Through the process of creating this first map students will be introduced to many of the core features of the leaflet package, including adding different map tiles, setting the center point and zoom level, plotting single points based on latitude and longitude coordinates, and storing leaflet maps as objects.</p>
<h2>Chapter 2: Plotting Points</h2>
<p><center><a rel="nofollow" href="https://www.datacamp.com/courses/interactive-maps-with-leaflet-in-r?tap_a=5644-dce66f&tap_s=10907-287229" target="_blank"><img src="https://i0.wp.com/res.cloudinary.com/dyd911kmh/image/upload/f_auto,q_auto:best/v1530812604/Screenshot_2018-07-03_14.33.54_-_Yashas_Roy_lbsaht.png?w=456" data-recalc-dims="1"></a></center></p>
<p>In this chapter students will build on the leaflet map they created in chapter 1 to create an interactive web map of every four year college in California. After plotting hundreds of points on an interactive leaflet map, students will learn to customize the markers on their leaflet map. This chapter will also how to color code markers based on a factor variable.</p>
<h2>Chapter 3: Groups, Layers, and Extras</h2>
<p><center><a rel="nofollow" href="https://www.datacamp.com/courses/interactive-maps-with-leaflet-in-r?tap_a=5644-dce66f&tap_s=10907-287229" target="_blank"><img src="https://i1.wp.com/res.cloudinary.com/dyd911kmh/image/upload/f_auto,q_auto:best/v1530810622/Screen_Shot_2018-07-04_at_12.00.39_PM_-_Becca_Robins_gk5uqb.png?w=456" data-recalc-dims="1"></a></center></p>
<p>In chapter 3, students will expand on their map of all four year colleges in California to create a map of all American colleges. First, in section 3.1 students will review and build on the material from Chapter 2 to create a map of all American colleges. Then students will re-plot the colleges on their leaflet map by sector (public, private, or for-profit) using groups to enable users to toggle the colleges that are displayed on the map. In section 3.3 students will learn to add multiple base maps so that users can toggle between multiple map tiles.</p>
<h2>Chapter 4: Plotting Polygons</h2>
<p><center><a rel="nofollow" href="https://www.datacamp.com/courses/interactive-maps-with-leaflet-in-r?tap_a=5644-dce66f&tap_s=10907-287229" target="_blank"><img src="https://i0.wp.com/res.cloudinary.com/dyd911kmh/image/upload/f_auto,q_auto:best/v1530810622/Screen_Shot_2018-07-04_at_12.02.50_PM_-_Becca_Robins_oxjzjl.png?w=456" data-recalc-dims="1"></a></center></p>
<p>In Chapter 4, students will learn to map polygons, which can be used to define geographic regions (e.g., zip codes, states, countries, etc.). Chapter 4 will start by plotting the zip codes in North Carolina that fall in the top quartile of mean family incomes. Students will learn to customize the polygons with color palettes and labels. Chapter 4 will conclude with adding a new layer to the map of every college in America that displays every zip code with a mean income of $200,000 or more during the 2015 tax year. Through the process of mapping zip codes students will learn about spatial data generally, geoJSON data, the @ symbol, and the addPolygons() function.</p>
<p>This course requires the following prerequisites:</p>
<p><a rel="nofollow" href="https://www.datacamp.com/courses/free-introduction-to-r?tap_a=5644-dce66f&tap_s=10907-287229" target="_blank">Introduction to R</a></p>
<p><a rel="nofollow" href="https://www.datacamp.com/courses/introduction-to-the-tidyverse?tap_a=5644-dce66f&tap_s=10907-287229" target="_blank">Introduction to the Tidyverse</a></p>
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