How to Align D3.js X-axis Dates with Supplied Data - d3.js

Question

I'm creating a time-based line chart and everything looks fine but I'm having difficulty with the x-axis tickmarks. As you can see http://jsfiddle.net/shubo/Yvupw/ the dates start at 2013-01-30 and ends at 2013-04-17 but the chart tick mark starts at 2013-2-3 and ends at 2013-4-14. What do I need to do so the first tickmark would show 2013-01-03 and the last one would show 2013-4-17?
var json = {
"data": [
{
"date": "2013-04-17",
"metric": 437792798
},
{
"date": "2013-04-10",
"metric": 437792998
},
{
"date": "2013-04-03",
"metric": 434633203
},
{
"date": "2013-03-27",
"metric": 431786310
},
{
"date": "2013-03-20",
"metric": 429614980
},
{
"date": "2013-03-13",
"metric": 427709519
},
{
"date": "2013-03-06",
"metric": 425894908
},
{
"date": "2013-02-27",
"metric": 423657524
},
{
"date": "2013-02-20",
"metric": 420392146
},
{
"date": "2013-02-13",
"metric": 417215035
},
{
"date": "2013-02-06",
"metric": 412433066
},
{
"date": "2013-01-30",
"metric": 408952856
}
]
};
var margin = {top: 20, right: 50, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 110 - margin.top - margin.bottom;
var parseDate = d3.time.format("%Y-%m-%d").parse;
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var line = d3.svg.line()
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.metric); });
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var data = json.data;
data.forEach(function(d) {
d.date = parseDate(d.date);
});
data.sort(function(a, b) {
return a.date - b.date;
});
x.domain([data[0].date, data[data.length - 1].date]);
y.domain(d3.extent(data, function(d) { return d.metric; }));
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("path")
.datum(data)
.attr("class", "line")
.attr("d", line);
var format = d3.format(',');

Answer 1

Try using axis.tickValues([values]) to control exactly which tick marks appear or use one of the one of the other tick settings.