How to sort data by date ?
I wanted to order data from a csv by date, and I didn't found a built-in function in d3. So after importing the data from the csv (or json as you want), here is what you do :
d3.csv('yourData.csv', function (error,data) {
data.forEach(function (d) {
d.Date = new Date(d["date"]);
//I have a date column in my csv;
d.DateNumber = d.Date.getDate();
//I wanted to order them by day, but it's possible with month and year as well :
// d.Date.getFullYear()+''+d.Date.getMonth() + '' + d.Date.getDate() + '';
d.DateNumber = parseInt(d.DateNumber);
});
data.sort(function(a, b){
return a.DateNumber - b.DateNumber //order them by the number and that's done !
});
});