Elm
import List exposing (map, maximum) type alias GpsCoordinate = Float type alias GpsSection = ( GpsCoordinate, GpsCoordinate ) type alias GpsTime = Int type alias GpsSpeed = Float type alias GpsAverageSpeed = Int toGpsSections : List GpsCoordinate -> List GpsSection toGpsSections list = case list of first :: second :: rest -> ( first, second ) :: toGpsSections (second :: rest) _ -> [] toGpsSpeed : GpsTime -> GpsSection -> GpsSpeed toGpsSpeed gpsTime ( firstCoordinate, secondCoordinate ) = (secondCoordinate - firstCoordinate) * 3600.0 / toFloat gpsTime toGpsAverageSpeed : GpsTime -> List GpsCoordinate -> GpsAverageSpeed toGpsAverageSpeed gpsTime gpsCoordinates = gpsCoordinates |> toGpsSections |> map (toGpsSpeed gpsTime) |> maximum |> Maybe.withDefault 0.0 |> floor
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Elm
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