approx_count | R Documentation |
Given a Sedona spatial RDD, find the (possibly approximated) number of total records within it.
approx_count(x)
x |
A Sedona spatial RDD. |
Approximate number of records within the SpatialRDD.
Other Spatial RDD aggregation routine:
minimum_bounding_box()
library(sparklyr)
library(apache.sedona)
sc <- spark_connect(master = "spark://HOST:PORT")
if (!inherits(sc, "test_connection")) {
input_location <- "/dev/null" # replace it with the path to your input file
rdd <- sedona_read_shapefile_to_typed_rdd(
sc,
location = input_location, type = "polygon"
)
approx_cnt <- approx_count(rdd)
}
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