This function takes a data frame of OD data and returns a data frame reporting summary statistics for each unique zone of destination.
od_aggregate_to(flow, attrib = NULL, FUN = sum, ..., col = 2)
A data frame representing origin-destination data.
The first two columns of this data frame should correspond
to the first column of the data in the zones. Thus in cents_sf()
,
the first column is geo_code. This corresponds to the first two columns
of flow()
.
character, column names in sl to be aggregated
A function to summarise OD data by
Additional arguments passed to FUN
The column that the OD dataset is grouped by (1 by default, the first column usually represents the origin)
It has some default settings: it assumes the destination ID column is the 2nd
and the default summary statistic is sum()
.
By default, if attrib
is not set, it summarises all numeric columns.
Other od:
od2line()
,
od2odf()
,
od_aggregate_from()
,
od_coords()
,
od_coords2line()
,
od_id
,
od_id_order()
,
od_oneway()
,
od_to_odmatrix()
,
odmatrix_to_od()
,
points2flow()
,
points2odf()