4.3 SLIDE Vectors Spatial Subsetting

• subsets of sf dataframes - select and return only features related in space to another object

  • square bracket ([) operator using the syntax x[y, , op = st_intersects]

  • st_intersects - is default

    • ‘catch all’ topological relation that will return features in the target that touch, cross or are within the source ‘subsetting’ object

  • op = st_disjoint - is opposite - points that DO NOT intersect with source

• 4.2.1 Demo of Spatial subsetting - view code and output in main book 04 RMD doc

  • book example - spData for sample data - NZ high points - point features and regions as polygons

  • book uses dplyr filter function (tidyverse) for example

Fig 4.1 NZ Spatial Subset example