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@DarienLiang
Created November 23, 2016 03:17
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fresh block
license: mit
<!DOCTYPE html>
<meta charset="utf-8">
<style> /* set the CSS */
body { font: 12px Arial;}
path {
stroke: steelblue;
stroke-width: 2;
fill: none;
}
.axis path,
.axis line {
fill: none;
stroke: grey;
stroke-width: 1;
shape-rendering: crispEdges;
}
.legend {
font-size: 16px;
font-weight: bold;
text-anchor: middle;
}
</style>
<body>
<!-- load the d3.js library -->
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>
// Set the dimensions of the canvas / graph
var margin = {top: 30, right: 20, bottom: 70, left: 50},
width = 600 - margin.left - margin.right,
height = 300 - margin.top - margin.bottom;
// Parse the date / time
var parseDate = d3.time.format("%b %Y");
// Set the ranges
var x = d3.time.scale().range([0, width]);
var y = d3.scale.linear().range([height, 0]);
// Define the line
var priceline = d3.svg.line()
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.price); });
// Adds the svg canvas
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 + ")");
// Get the data
d3.csv("weather2.csv", function(error, data) {
data.forEach(function(d) {
d.date = parseDate.parse(d.date);
d.price = +d.price;
});
// Scale the range of the data
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain([0, d3.max(data, function(d) { return d.price; })]);
// Nest the entries by symbol
var dataNest = d3.nest()
.key(function(d) {return d.symbol;})
.entries(data);
// set the colour scale
var color = d3.scale.category10();
// Loop through each symbol / key
dataNest.forEach(function(d,i) {
console.log(d);
svg.append("path")
.attr("class", "line")
.style("stroke", function() { // Add the colours dynamically
return d.color = color(d.key); })
.attr("id", 'tag'+d.key.replace(/\s+/g, '')) // assign an ID
.attr("d", priceline(d.values));
});
/*
// Add the X Axis
svg.append("g")
.attr("class", "axis")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x));
// Add the Y Axis
svg.append("g")
.attr("class", "axis")
.call(d3.axisLeft(y));
*/
});
</script>
</body>
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