chiffenok · October 25, 2017 13:48 · Oct 25, 2017 · Oct 25, 2017
diff --git a/index.html b/index.html
@@ -17,8 +17,8 @@
 
 // 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;
+    width = 400 - margin.left - margin.right,
+    height = 200 - margin.top - margin.bottom;
 
 // parse the date / time
 var parseTime = d3.timeParse("%d-%b-%y");

diff --git a/.block b/.block
@@ -0,0 +1 @@
+license: mit
diff --git a/README.md b/README.md
@@ -0,0 +1,5 @@
+This is a simple graph demonstrating the display of multiple lines. This was written using d3.js v4 and is a follow on to the simple graph example [here](http://bl.ocks.org/d3noob/3c040800ff6457717cca586ae9547dbf). 
+
+This graph is part of the code samples for the update to the book [D3 Tips and Tricks](https://leanpub.com/d3-t-and-t-v4) to version 4 of d3.js.
+
+forked from <a href='http://bl.ocks.org/d3noob/'>d3noob</a>'s block: <a href='http://bl.ocks.org/d3noob/4db972df5d7efc7d611255d1cc6f3c4f'>Multiple line graph in v4</a>
diff --git a/data2.csv b/data2.csv
@@ -0,0 +1,27 @@
+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
diff --git a/index.html b/index.html
@@ -0,0 +1,91 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<style> /* set the CSS */
+
+.line {
+  fill: none;
+  stroke: steelblue;
+  stroke-width: 2px;
+}
+
+</style>
+<body>
+
+<!-- load the d3.js library -->    	
+<script src="https://d3js.org/d3.v4.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 1st line
+var valueline = d3.line()
+    .x(function(d) { return x(d.date); })
+    .y(function(d) { return y(d.close); });
+
+// define the 2nd line
+var valueline2 = d3.line()
+    .x(function(d) { return x(d.date); })
+    .y(function(d) { return y(d.open); });
+
+// 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", function(error, data) {
+  if (error) throw error;
+
+  // format the data
+  data.forEach(function(d) {
+      d.date = parseTime(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; }));
+  y.domain([0, d3.max(data, function(d) {
+	  return Math.max(d.close, d.open); })]);
+
+  // Add the valueline path.
+  svg.append("path")
+      .data([data])
+      .attr("class", "line")
+      .attr("d", valueline);
+
+  // Add the valueline2 path.
+  svg.append("path")
+      .data([data])
+      .attr("class", "line")
+      .style("stroke", "red")
+      .attr("d", valueline2);
+
+  // 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));
+
+});
+
+</script>
+</body>