Merge a Spatial* object having attributes with a data.frame
Merge a Spatial object having a data.frame (i.e. merging of non-spatial attributes).
# S4 method for 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, ...)
object deriving from Spatial
object of class
data.frame, or any other class that can be coerced to a data.frame with
- by, by.x, by.y
specifications of the common columns. See 'Details' in (base)
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
character(2) specifying the suffixes to be used for making non-by names() unique.
values which cannot be matched. See
xare duplicated if there are multiple matches between records in
arguments to be passed to or from methods.
a Spatial* object