How to dissolving polygons in ArcGIS with SF?

How to dissolving polygons in ArcGIS with SF?

Consider counties by two groups in ArcGIS. The ArcGIS dissolve command yields two polygons, regardless of the fact that the eastern peninsula consists of additional separate polygons. Like so: This is the functionality I’d like to replicate in sf, however I cannot as demonstrated below.

How is unionspatialpolygons function dissolves polygons?

Based on my search I understand that unionSpatialPolygons function dissolves polygons but when I tried to use it I got error: Error: TopologyException: Input geom 0 is invalid: Self-intersection at or near point 162544.73551388 516922.55880385998 at 162544.73551388 516922.55880385998

How to get rid of topology error in shapefile?

As for the fix, I would suggest to remove the topology error by editing shapefile using QGIS or ArcMap. An Interesting way to avoid/fix TopologyException errors was proposed by @hrbrmstr here: forcing a zero-width buffer.

How are simple features represented in a SF object?

Manipulating Simple Features This vignette describes how simple features, i.e. records that come with a geometry, can be manipulated, for the case where these manipulations involve geometries. Manipulations include: Features are represented by records in an sf object, and have feature attributes (all non-geometry fields) and feature geometry.

When to use empty geometry instead of SF?

In case of no matching geometry, an empty geometry is substituted. The second argument should be a data.frame (or similar), not an sf object: For joining based on spatial intersections (of any kind), st_join is used: The join method is a left join, retaining all records of the first attribute:

How to create a superclass of a geometry?

This option is handled by the GDAL library; in case of failure to convert to the target type, the original types are returned, which in this case is a mix of POLYGON and MULTIPOLYGON geometries, leading to a GEOMETRY as superclass. When we try to read multipolygons as polygons, all secondary rings of multipolygons get lost.