More sp classes and methods

Visualizing Geospatial Data in R

Charlotte Wickham

Assistant Professor at Oregon State University

Hierarchy of SpatialPolygonsDataFrame

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Hierarchy of SpatialPolygonsDataFrame

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Hierarchy of SpatialPolygonsDataFrame

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Hierarchy of SpatialPolygonsDataFrame

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Hierarchy of SpatialPolygonsDataFrame

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Hierarchy of SpatialPolygonsDataFrame

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Hierarchy of SpatialPolygonsDataFrame

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Hierarchy of SpatialPolygonsDataFrame

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Hierarchy of SpatialPolygonsDataFrame

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Other sp classes

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Other sp classes

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Other sp classes

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Other sp classes

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Other sp classes

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Other sp classes

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Other sp classes

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Other sp classes

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Other sp classes

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Subsetting sp classes

# Subset by index
str(countries_spdf[1, ], max.level = 2)

Formal class 'SpatialPolygonsDataFrame' [package "sp"] with 5 slots
  ..@ data       :'data.frame':    1 obs. of  6 variables:
  ..@ polygons   :List of 1
  ..@ plotOrder  : int 1
  ..@ bbox       : num [1:2, 1:2] 60.5 29.3 75.2 38.5
  .. ..- attr(*, "dimnames")=List of 2
  ..@ proj4string:Formal class 'CRS' [package "sp"] with 1 slot

Let's practice!

Visualizing Geospatial Data in R