st = {
const values = filtered.map(d => d.usage)
return {
max: d3.quantile(values, range.high),
upper: d3.quantile(values, 0.75),
lower: d3.quantile(values, 0.25),
min: d3.quantile(values, range.low),
mean: d3.mean(values),
median: d3.median(values)
}
}