└── README.md


/README.md:
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 1 | # ArcMap-to-R
 2 | 
 3 | The purpose of this repository is help me remember how to perform various geoprocessing operations across Esri's ArcMap and R's `sf` and `raster` packages. Sometimes the tools use the same name, sometimes they don't.
 4 | 
 5 | # Vector (feature class) Operations
 6 | 
 7 | **Operation**|**ArcMap**|**sf**
 8 | :-----:|:-----:|:-----:
 9 | Project New Coordinate System|Define Projection|`st_transform`, `st_crs`
10 | Buffer|Buffer|`st_buffer`
11 | Find Centroid|Field Calculator|`st_centroid`
12 | Simplify Geometry|Simplify Polygon, Simplify Line|`st_simplify`
13 | Triangulate Points|Create TIN|`st_triangulate`
14 | Create Voronoi Polygons|Create Theissen Polygons|`st_voronoi`
15 | Create Convex Hull|Minimum Bounding Geometry|`st_convex_hull`
16 | Find Intersection|Intersect|`st_intersect`
17 | Find Overlap|Identity|`st_difference`
18 | Crop/Clip|Clip|`st_crop`, `st_intersection`
19 | Spatial Join|Spatial Join|`st_union`, `st_join`
20 | Calculate Proximity|Near|`st_nearest_feature`, `st_nearest_point`
21 | Symmetrical Difference|Symmetrical Difference|`st_sym_difference`
22 | 
23 | # Raster Operations
24 | 
25 | **Operation**|**ArcMap**|**raster**
26 | :-----:|:-----:|:-----:
27 | Manipulate Raster Values|Raster Math|`values(r) <- {function}`, `calc`, `overlay`
28 | Vector to Raster|Polygon to Raster|`rasterize`
29 | Extract Values by Point|Extract Multi Values to Points|`extract`
30 | Project CRS|Project|`crs`, `projectRaster`
31 | Change grid cell size|Environment Settings > Raster Analysis|`aggregate`
32 | Reclassify Values|Reclassify|`reclassify`
33 | Hillshade|Hillshade|`hillShade`
34 | Create contours|Contour|`contour`
35 | Zonal statistics|Zonal Statistics, Zonal Statistics as Table|`zonal`
36 | Aspect/Direction|Aspect|`direction`
37 | 


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