geo.asTracks() function
geo.asTracks() is experimental and subject to change at any time.
geo.asTracks() groups rows into tracks (sequential, related data points).
Function type signature
(<-tables: stream[A], ?groupBy: [string], ?orderBy: [string]) => stream[A] where A: RecordFor more information, see Function type signatures.
Parameters
groupBy
Columns to group by. These columns should uniquely identify each track.
Default is ["id","tid"].
orderBy
Columns to order results by. Default is ["_time"].
Sort precedence is determined by list order (left to right).
tables
Input data. Default is piped-forward data (<-).
Examples
Group geotemporal data into tracks
import "experimental/geo"
data
|> geo.asTracks()Group geotemporal data into tracks and sort by specified columns
import "experimental/geo"
data
|> geo.asTracks(orderBy: ["lat", "lon"])Was this page helpful?
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