systems = d3.csvParse(systems_csv, (d) => {
let deltaH_lo = +d.deltaH_lo, deltaH_hi = +d.deltaH_hi, deltaI_lo = +d.deltaI_lo, deltaI_hi = +d.deltaI_hi;
return {
system: d.system,
deltaH_lo, deltaH_hi, deltaI_lo, deltaI_hi,
deltaH: .5*(deltaH_lo + deltaH_hi),
deltaI: .5*(deltaI_lo + deltaI_hi)
};
})