How to create two plot areas with highcharts - highcharts

Question

I want to plot several values across the same time series. However, I'd like to split them up into separate plot areas. Ideally, it would be a single Y axis and multiple X axis. I don't just want a secondary axis as shown here.
I realize I could just create two charts, but then the time series might not line up perfectly well.

Answer 1

You can use one x-axis versus multiple y-axes. I think the example is self explanatory: http://jsfiddle.net/unqmP/
Revision: Adding the JS code:
$(function() {
$.getJSON('http://www.highcharts.com/samples/data/jsonp.php?filename=aapl-ohlcv.json&callback=?', function(data) {
// split the data set into ohlc and volume
var ohlc = [],
volume = [],
dataLength = data.length;
for (i = 0; i < dataLength; i++) {
ohlc.push([
data[i][0], // the date
data[i][1], // open
data[i][2], // high
data[i][3], // low
data[i][4] // close
]);
volume.push([
data[i][0], // the date
data[i][5] // the volume
])
}
// set the allowed units for data grouping
var groupingUnits = [[
'week', // unit name
[1] // allowed multiples
], [
'month',
[1, 2, 3, 4, 6]
]];
// create the chart
chart = new Highcharts.StockChart({
chart: {
renderTo: 'container',
alignTicks: false
},
rangeSelector: {
selected: 1
},
title: {
text: 'AAPL Historical'
},
yAxis: [{
title: {
text: 'OHLC'
},
height: 200,
lineWidth: 2
}, {
title: {
text: 'Volume'
},
top: 300,
height: 100,
offset: 0,
lineWidth: 2
}],
series: [{
type: 'spline',
name: 'AAPL',
data: ohlc,
dataGrouping: {
units: groupingUnits
}
}, {
type: 'spline',
name: 'Volume',
data: volume,
yAxis: 1,
dataGrouping: {
units: groupingUnits
}
}]
});
});
});