Sample radar chart

read "ef2015.csv"
extend jahr = 2015
read "ef2019.csv"
extend jahr = 2019
union
select kanton == "Zürich"
select partei regexi "gps|sp|glp|cvp|fdp|svp"
project partei, jahr, fiktive_waehlende
format fiktive_waehlende "%02d"
deserialize
order _2019 9
delegate "radarchart"
print