<!DOCTYPE html>
<meta charset="utf-8">
<meta
name="viewport"
content="width=device-width, initial-scale=1"
>
<!-- Bootstrap CSS -->
<link
href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x"
crossorigin="anonymous"
>
<style>
/* set the CSS */
@import url('https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@100;200;300;400;500;600;700;800;900&display=swap');
body {
font-family: 'Roboto Slab', serif;
font-size: 12px;
}
path {
stroke: steelblue;
stroke-width: 1;
fill: none;
}
.axis path,
.axis line {
fill: none;
stroke: grey;
stroke-width: 1;
shape-rendering: crispEdges;
}
</style>
<body>
<!-- Option 1: Bootstrap Bundle with Popper -->
<script
src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"
integrity="sha384-gtEjrD/SeCtmISkJkNUaaKMoLD0//ElJ19smozuHV6z3Iehds+3Ulb9Bn9Plx0x4"
crossorigin="anonymous"
></script>
<!-- load the d3.js library -->
<script src="https://d3js.org/d3.v6.min.js"></script>
<script>
// Set the dimensions of the canvas / graph
var margin = {top: 30, right: 20, bottom: 30, left: 50},
width = document.documentElement.clientWidth - margin.left - margin.right,
height = 600 - margin.top - margin.bottom;
// Parse the date / time
var parseDate = d3.timeParse("%b %Y");
//var parseDate = d3.timeParse("%Y-%m-%d");
// Set the ranges
var x = d3.scaleTime().range([0, width]);
var y = d3.scaleLinear().range([height, 0]);
// Define the line
var priceline = d3.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("stocks.csv").then(function (data) {
// console.log(data);
data.forEach(function (d) {
d.date = parseDate(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;})]);
// Group the entries by symbol
dataNest = Array.from(
d3.group(data, d => d.symbol), ([key, value]) => ({key, value})
);
// set the colour scale
var color = d3.scaleOrdinal(d3.schemeCategory10);
// Loop through each symbol / key
dataNest.forEach(function (d, i) {
svg.append("path")
.attr("class", "line")
.style("stroke", function () { // Add the colours dynamically
return d.color = color(i);
})
.attr("d", priceline(d.value));
});
// 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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