cases_per_day = d3.sort(
prefs.map((pref) => {
const pref_data = raw_data.filter((d) => d.pref === pref);
const data = pref_data.map((dd, i) => {
return {
date: dd.date,
value: dd.case
};
});
return {
pref,
data
};
}),
(s) =>
-d3.greatestIndex(
movingAverage(
s.data.map((d) => d.value),
7
)
)
)