10  Shape

• Michael T. Hallworth | Introduction to spatial polygons in R
• Computing for the Social Sciences | Importing spatial data files using sf
• Computing for the Social Sciences | Drawing vector maps with simple features and ggplot2
• Stack Overflow | Create SpatialPointsDataframe
• Stack Overflow | How to attach a simple data.frame to a SpatialPolygonDataFrame in R?
• Red Fox GIS | How to read and write shapefiles with R?
• R-bloggers | Things I Forget: Reading a Shapefile in R with readOGR
• Stack Overflow | extract coordinates of points in simple feature data frame
• Stack Overflow | How to make Multipolygons with Package SF and dplyr
• Stack Overflow | ggplot2 - How to set CRS for a .shp polygon file in R
• Stack Overflow | Convert data frame containing coordinates of polygons to sf
• Stack Overflow | Efficient union of features by attributes using simple features (SF) in r?
• Stack Overflow | How to calculate centroid of polygon using sf::st_centroid?
• GIS Stack Exchange | Removing empty polygon from sf object in R?