nv.models.stackedAreaChart - GerHobbelt/nvd3 GitHub Wiki
Creates a Stacked Area Chart.
Usage
chart = nv.models.stackedAreaChart()
.x(function(d) { return d[0] })
.y(function(d) { return d[1] })
d3.select('#chart svg')
.datum(input) // Should be an array of objects in the form {key:keyname, values:[]}
.call(chart);