index.html
<!DOCTYPE html>
<html>
<meta charset="utf-8">
<body>
<div id="chart">
<svg width = "960px" height = "500px" style="border: 0.5px solid #ccc;">
</svg>
</div>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>
var data = [
{month: 1, high:56.39, low:45.61, precipitations:4.39},
{month: 2, high:59.83, low:48, precipitations:3.87},
{month: 3, high:61.65, low:48.84, precipitations:2.79},
{month: 4, high:62.97, low:49.8, precipitations:1.37},
{month: 5, high:64, low:51.26, precipitations:0.56},
{month: 6, high:66.13, low:52.77, precipitations:0.15},
{month: 7, high:65.71, low:53.68, precipitations:0.02},
{month: 8, high:66.58, low:54.45, precipitations:0.06},
{month: 9, high:69.87, low:55.57, precipitations:0.23},
{month: 10, high:69.26, low:54.35, precipitations:1.02},
{month: 11, high:63.7, low:50.97, precipitations:2.59},
{month: 12, high:57.35, low:46.9, precipitations:4.06}
];
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.scale.linear()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.category10();
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
var svg = d3.select("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
data.forEach(function(d) {
d.high = +d.high;
d.precipitations = +d.precipitations;
});
x.domain([d3.min(data, function(d) { return d.low; }),
d3.max(data, function(d) { return d.high; })]
).nice();
y.domain(
[d3.min(data, function(d) { return d.precipitations; }),
d3.max(data, function(d) { return d.precipitations; })]
).nice();
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis)
.append("text")
.attr("class", "label")
.attr("x", width)
.attr("y", -6)
.style("text-anchor", "end")
.text("high");
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("class", "label")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".3em")
.style("text-anchor", "end")
.text("precipitations (in)")
svg.select(".x path")
.attr("fill", "none");
svg.select(".y path")
.attr("fill", "none");
svg.selectAll(".dot")
.data(data)
.enter().append("circle")
.attr("class", "dot")
.attr("r", 5)
.attr("cx", function(d) { return x(d.high); })
.attr("cy", function(d) { return y(d.precipitations); })
.style("fill", "orange");
svg.selectAll(".box")
.data(data)
.enter().append("rect")
.attr("class", "box")
.attr("height", 2)
.attr("width", 2)
.attr("x", function(d) { return x(d.low); })
.attr("y", function(d) { return y(d.precipitations); })
.style("fill", "blue");
var legend = svg.selectAll(".legend")
.data(color.domain())
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 18)
.style("fill", color);
legend.append("text")
.attr("x", width - 24)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) { return d; });
</script>
</body>
</html>