Highcharts Configuration Preview
Highcharts.getJSON('https://cdn.jsdelivr.net/gh/highcharts/[email protected]/samples/data/usdeur.json', function (data) {
var startDate = new Date(data[data.length - 1][0]),
minRate = 1,
maxRate = 0,
startPeriod,
date,
rate,
index;
startDate.setMonth(startDate.getMonth() - 3); // a quarter of a year before last data point
startPeriod = Date.UTC(startDate.getFullYear(), startDate.getMonth(), startDate.getDate());
for (index = data.length - 1; index >= 0; index = index - 1) {
date = data[index][0]; // data[i][0] is date
rate = data[index][1]; // data[i][1] is exchange rate
if (date < startPeriod) {
break; // stop measuring highs and lows
}
if (rate > maxRate) {
maxRate = rate;
}
if (rate < minRate) {
minRate = rate;
}
}
// Create the chart
Highcharts.stockChart('container', {
rangeSelector: {
selected: 1
},
title: {
text: 'USD to EUR exchange rate'
},
yAxis: {
title: {
text: 'Exchange rate'
},
plotBands: [{
from: minRate,
to: maxRate,
color: 'rgba(68, 170, 213, 0.2)',
label: {
text: 'Last quarter year\'s value range'
}
}]
},
series: [{
name: 'USD to EUR',
data: data,
tooltip: {
valueDecimals: 4
}
}]
});
});