sp (version 1.0-17)

merge: Merge a Spatial* object having attributes with a data.frame

Description

Merge a Spatial object having a data.frame (i.e. merging of non-spatial attributes).

Usage

## S3 method for class 'Spatial,data.frame':
merge(x, y, by = intersect(names(x), names(y)),
 by.x = by, by.y = by, all.x = TRUE, suffixes = c(".x",".y"),
 incomparables = NULL, duplicateGeoms = FALSE, ...)

Arguments

x
object deriving from Spatial
y
ojbect of class data.frame
by, by.x, by.y
specifications of the common columns. See 'Details' in (base) merge
all.x
logical; if TRUE, then the returned object will have all rows of x, even those that has no matching row in y. These rows will have NAs in those columns that are usually filled with values from y
suffixes
character(2) specifying the suffixes to be used for making non-by names() unique.
incomparables
values which cannot be matched. See match.
duplicateGeoms
logical; if TRUE geometries in x are duplicated if there are multiple matches between records in x and y
...
arguments to be passed to or from methods.

Value

  • a Spatial* object

See Also

merge