passed = d3.csvParse(csvData, function(d,y) {
console.log(y)
let keyNames = ['key1','key2','key3']
let keyData = [d.key1,d.key2,d.key3]
let groupYear = ['y1','y2']
let ddd = []
for(let i=0;i<3;i++){
ddd.push({
name: keyNames[i],
value: keyData[i],
date: new Date(d.Date),
groupName: groupYear[y]
})
}
return ddd
});