Reference

All functions
densify()	Densify spatial lines or polygons
drop_crumbs()	Remove small polygons or line segments
fill_holes()	Fill small holes in polygons
jagged_lines	Jagged lines for smoothing
jagged_lines_3d	3D jagged line with Z-dimension for smoothing
jagged_polygons	Jagged polygons for smoothing
jagged_raster	Simulated raster for polygonizing and smoothing
smooth()	Smooth a spatial feature
smooth_chaikin()	Chaikin's corner cutting algorithm
smooth_densify()	Densify lines or polygons
smooth_ksmooth()	Kernel smooth
smooth_spline()	Spline interpolation