d3noob/.block

## .block
license: mit

## data2a.csv

          
            date
            close
            open

            
              1-May-12
              58.13
              3.41

            
              30-Apr-12
              53.98
              4.55

            
              27-Apr-12
              67.00
              6.78

            
              26-Apr-12
              89.70
              7.85

            
              25-Apr-12
              99.00
              8.92

            
              24-Apr-12
              130.28
              9.92

            
              23-Apr-12
              166.70
              10.13

            
              20-Apr-12
              234.98
              12.23

            
              19-Apr-12
              345.44
              13.45

            
              18-Apr-12
              443.34
              16.04

            
              17-Apr-12
              543.70
              18.03

            
              16-Apr-12
              580.13
              21.02

            
              13-Apr-12
              605.23
              22.34

            
              12-Apr-12
              622.77
              20.15

            
              11-Apr-12
              626.20
              21.26

            
              10-Apr-12
              628.44
              31.04

            
              9-Apr-12
              636.23
              35.04

            
              5-Apr-12
              633.68
              41.02

            
              4-Apr-12
              624.31
              43.05

            
              3-Apr-12
              629.32
              46.03

            
              2-Apr-12
              618.63
              51.03

            
              30-Mar-12
              599.55
              53.42

            
              29-Mar-12
              609.86
              57.82

            
              28-Mar-12
              617.62
              59.01

            
              27-Mar-12
              614.48
              56.03

            
              26-Mar-12
              606.98
              58.01

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

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;
}

</style>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script>

<script>

var margin = {top: 30, right: 40, bottom: 30, left: 50},
    width = 600 - margin.left - margin.right,
    height = 270 - margin.top - margin.bottom;

var parseDate = d3.time.format("%d-%b-%y").parse;

var x = d3.time.scale().range([0, width]);
var y0 = d3.scale.linear().range([height, 0]);
var y1 = d3.scale.linear().range([height, 0]);

var xAxis = d3.svg.axis().scale(x)
    .orient("bottom").ticks(5);

var yAxisLeft = d3.svg.axis().scale(y0)
    .orient("left").ticks(5);

var yAxisRight = d3.svg.axis().scale(y1)
    .orient("right").ticks(5);

var valueline = d3.svg.line()
    .x(function(d) { return x(d.date); })
    .y(function(d) { return y0(d.close); });

var valueline2 = d3.svg.line()
    .x(function(d) { return x(d.date); })
    .y(function(d) { return y1(d.open); });

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("data2a.csv", function(error, data) {
    data.forEach(function(d) {
        d.date = parseDate(d.date);
        d.close = +d.close;
        d.open = +d.open;
    });

    // Scale the range of the data
    x.domain(d3.extent(data, function(d) { return d.date; }));
    y0.domain([0, d3.max(data, function(d) {
		return Math.max(d.close); })]);
    y1.domain([0, d3.max(data, function(d) {
		return Math.max(d.open); })]);

    svg.append("path")        // Add the valueline path.
        .attr("d", valueline(data));

    svg.append("path")        // Add the valueline2 path.
        .style("stroke", "red")
        .attr("d", valueline2(data));

    svg.append("g")            // Add the X Axis
        .attr("class", "x axis")
        .attr("transform", "translate(0," + height + ")")
        .call(xAxis);

    svg.append("g")
        .attr("class", "y axis")
        .style("fill", "steelblue")
        .call(yAxisLeft);

    svg.append("g")
        .attr("class", "y axis")
        .attr("transform", "translate(" + width + " ,0)")
        .style("fill", "red")
        .call(yAxisRight);

});

</script>
</body>

## redame.md

      
    Raw
  

              redame.md
            
          
    This is a follow on from the dual line d3.js graph used as an example in the book D3 Tips and Tricks.
It demonstrates the use of dual y axes to represent two different graph lines and should be taken in context with the text of the book which can be downloaded for free from Leanpub.

  
## thumbnail.png

      
    Raw
  

              thumbnail.png
date	close	open
1-May-12	58.13	3.41
30-Apr-12	53.98	4.55
27-Apr-12	67.00	6.78
26-Apr-12	89.70	7.85
25-Apr-12	99.00	8.92
24-Apr-12	130.28	9.92
23-Apr-12	166.70	10.13
20-Apr-12	234.98	12.23
19-Apr-12	345.44	13.45
18-Apr-12	443.34	16.04
17-Apr-12	543.70	18.03
16-Apr-12	580.13	21.02
13-Apr-12	605.23	22.34
12-Apr-12	622.77	20.15
11-Apr-12	626.20	21.26
10-Apr-12	628.44	31.04
9-Apr-12	636.23	35.04
5-Apr-12	633.68	41.02
4-Apr-12	624.31	43.05
3-Apr-12	629.32	46.03
2-Apr-12	618.63	51.03
30-Mar-12	599.55	53.42
29-Mar-12	609.86	57.82
28-Mar-12	617.62	59.01
27-Mar-12	614.48	56.03
26-Mar-12	606.98	58.01
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	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;
	}

	</style>
	<body>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script>

	<script>

	var margin = {top: 30, right: 40, bottom: 30, left: 50},
	width = 600 - margin.left - margin.right,
	height = 270 - margin.top - margin.bottom;

	var parseDate = d3.time.format("%d-%b-%y").parse;

	var x = d3.time.scale().range([0, width]);
	var y0 = d3.scale.linear().range([height, 0]);
	var y1 = d3.scale.linear().range([height, 0]);

	var xAxis = d3.svg.axis().scale(x)
	.orient("bottom").ticks(5);

	var yAxisLeft = d3.svg.axis().scale(y0)
	.orient("left").ticks(5);

	var yAxisRight = d3.svg.axis().scale(y1)
	.orient("right").ticks(5);

	var valueline = d3.svg.line()
	.x(function(d) { return x(d.date); })
	.y(function(d) { return y0(d.close); });

	var valueline2 = d3.svg.line()
	.x(function(d) { return x(d.date); })
	.y(function(d) { return y1(d.open); });

	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("data2a.csv", function(error, data) {
	data.forEach(function(d) {
	d.date = parseDate(d.date);
	d.close = +d.close;
	d.open = +d.open;
	});

	// Scale the range of the data
	x.domain(d3.extent(data, function(d) { return d.date; }));
	y0.domain([0, d3.max(data, function(d) {
	return Math.max(d.close); })]);
	y1.domain([0, d3.max(data, function(d) {
	return Math.max(d.open); })]);

	svg.append("path") // Add the valueline path.
	.attr("d", valueline(data));

	svg.append("path") // Add the valueline2 path.
	.style("stroke", "red")
	.attr("d", valueline2(data));

	svg.append("g") // Add the X Axis
	.attr("class", "x axis")
	.attr("transform", "translate(0," + height + ")")
	.call(xAxis);

	svg.append("g")
	.attr("class", "y axis")
	.style("fill", "steelblue")
	.call(yAxisLeft);

	svg.append("g")
	.attr("class", "y axis")
	.attr("transform", "translate(" + width + " ,0)")
	.style("fill", "red")
	.call(yAxisRight);

	});

	</script>
	</body>