Update 04-spatial-operations.Rmd

04-spatial-operations.Rmd

@@ -29,8 +29,8 @@ Spatial joining (Section \@ref(spatial-joining)) and aggregation (Section \@ref(
 
 Spatial operations differ from non-spatial operations in a number of ways, however:
 Spatial joins, for example, can be done in a number of ways --- including matching entities that intersect with or are within a certain distance of the target dataset --- while the attribution joins discussed in Section \@ref(vector-attribute-joining) in the previous chapter can only be done in one way (except when using fuzzy joins, as described in the documentation of the [**fuzzyjoin**](https://cran.r-project.org/package=fuzzyjoin) package).
-The *type* of spatial relationship between objects must be considered when undertaking spatial operations, as described in Section \@ref(topological-relations), on topological relations between vector features
-\index{spatial operations}.
+The *type* of spatial relationship between objects must be considered when undertaking spatial operations, as described in Section \@ref(topological-relations), on topological relations between vector features.
+\index{spatial operations}
 Another unique aspect of spatial objects is distance: all spatial objects are related through space, and distance calculations can be used to explore the strength of this relationship, as described in the context of vector data in Section \@ref(distance-relations).
 
 Spatial operations on raster objects include subsetting --- covered in Section \@ref(spatial-raster-subsetting) --- and merging several raster 'tiles' into a single object, as demonstrated in Section \@ref(merging-rasters).