R interface to a PostGIS database.
This package provides additional functions to the
RPostgreSQL package to interface R with a PostGIS-enabled
database, as well as convenient wrappers to common PostgreSQL
queries. For a list of documented functions, use
library(help = "rpostgis").
A typical session starts by establishing the connection to a working PostgreSQL database:
library(rpostgis) con <- dbConnect("PostgreSQL", dbname = <dbname>, host = <host>, user = <user>, password = <password>)
For example, this could be:
con <- dbConnect("PostgreSQL", dbname = "rpostgis", host = "localhost", user = "postgres", password = "postgres")
The next step typically involves checking if PostGIS was installed on the working database, and if not try to install it:
The function should return
TRUE for all
functions to work.
Finally, at the end of an interactive session, the connection to the database should be closed:
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