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@d3noob
Last active Jun 19, 2021
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Graph and table with tricks in v7
license: mit

This is a simple graph demonstrating the addition of a table with several 'tricks' and a graph (open in full screen to see the table).

This graph is part of the code samples for the update to the book D3 Tips and Tricks to version 7 of d3.js.

date close open
1-May-12 68.13 34.12
30-Apr-12 63.98 45.56
27-Apr-12 67.00 67.89
26-Apr-12 89.70 78.54
25-Apr-12 99.00 89.23
24-Apr-12 130.28 99.23
23-Apr-12 166.70 101.34
20-Apr-12 234.98 122.34
19-Apr-12 345.44 134.56
18-Apr-12 443.34 160.45
17-Apr-12 543.70 180.34
16-Apr-12 580.13 210.23
13-Apr-12 605.23 223.45
12-Apr-12 622.77 201.56
11-Apr-12 626.20 212.67
10-Apr-12 628.44 310.45
9-Apr-12 636.23 350.45
5-Apr-12 633.68 410.23
4-Apr-12 624.31 430.56
3-Apr-12 629.32 460.34
2-Apr-12 618.63 510.34
30-Mar-12 599.55 534.23
29-Mar-12 609.86 578.23
28-Mar-12 617.62 590.12
27-Mar-12 614.48 560.34
26-Mar-12 606.98 580.12
<!DOCTYPE html>
<meta charset="utf-8">
<style> /* set the CSS */
.line {
fill: none;
stroke: steelblue;
stroke-width: 2px;
}
td, th {
padding: 1px 4px;
border: 1px black solid;
}
</style>
<body>
<!-- load the d3.js library -->
<script src="https://d3js.org/d3.v7.min.js"></script>
<script>
// set the dimensions and margins of the graph
var margin = {top: 20, right: 20, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// parse the date / time
var parseTime = d3.timeParse("%d-%b-%y");
// set the ranges
var x = d3.scaleTime().range([0, width]);
var y = d3.scaleLinear().range([height, 0]);
// define the line
var valueline = d3.line()
.x(function(d) { return x(d.date1); })
.y(function(d) { return y(d.close); });
// append the svg obgect to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
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("data2.csv").then(function(data) {
// format the data
data.forEach(function(d) {
d.date1 = parseTime(d.date);
d.close = +d.close;
d.open = +d.open; // <= added this for tidy house keeping
d.diff = Math.round(( d.close - d.open ) * 100 ) / 100;
});
// Scale the range of the data
x.domain(d3.extent(data, function(d) { return d.date1; }));
y.domain([0, d3.max(data, function(d) { return d.close; })]);
// Add the valueline path.
svg.append("path")
.data([data])
.attr("class", "line")
.attr("d", valueline);
// Add the X Axis
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x));
// Add the Y Axis
svg.append("g")
.call(d3.axisLeft(y));
// The table generation function
function tabulate(data, columns) {
var table = d3.select("body").append("table")
.attr("style", "margin-left: 360px")
.style("border-collapse", "collapse")
.style("border", "2px black solid"),
thead = table.append("thead"),
tbody = table.append("tbody");
// append the header row
thead.append("tr")
.selectAll("th")
.data(columns)
.enter()
.append("th")
.text(function(column) { return column; });
// create a row for each object in the data
var rows = tbody.selectAll("tr")
.data(data)
.enter()
.append("tr");
// create a cell in each row for each column
var cells = rows.selectAll("td")
.data(function(row) {
return columns.map(function(column) {
return {column: column, value: row[column]};
});
})
.enter()
.append("td")
.attr("style", "font-family: Courier") // sets the font style
.html(function(d) { return d.value; });
return table;
}
// render the table
var peopleTable = tabulate(data, ["date", "close", "open", "diff"]);
peopleTable.selectAll("tbody tr")
.sort(function(a, b) {
return d3.descending(a.close, b.close);
});
peopleTable.selectAll("thead th")
.text(function(column) {
return column.charAt(0).toUpperCase() + column.substr(1);
});
});
</script>
</body>
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