MergeSpatial: Merge a list of Spatial*DataFrame objects into one Spatial*DataFrame
Description
Several independent Spatatial*DataFrame objects held in a
list can be merged into one object as long as all are of
the same class. CRS projections will be performed if
target CRS is provided. If CRS is not provided, the CRS
of the first object will be used. If even one object is
missing a CRS, no projections are performed and there is
no guarantee that merge will produce desired outcome.
Usage
MergeSpatial(sp.list, CRS = NA, FID = NA)
Arguments
sp.list
A list of Spatial*DataFrame objects to be
merged
CRS
A proj4string definign target CRS for the
target Spatial*DataFrame object
FID
A string that names the column used as FID
Value
a list of Shape objects (from SpatialPolygonsDataFrame
class)
Details
All schemas must match, a schema is checked on the basis
of column names. An optional FID string can be give to
name for a field (column) in table schema that will be
used as FIDs. It's up to the user to check that FID
values are unique.