Visualize speed proportion evolution with trafic

Graphical representation (raw and smoothed curves) of the proportion of vehicles above 10, 20, 30 and 40 km/h per vehicles/hour

Usage

plot_speed(...)

Arguments

...

data and parameters to filter on, see filtering

Value

A list containing the curves, the result of the Darling-Erdös test performed on smoothed curves, and the processed data used for the curves