diff --git a/examples/line/line-defined.html b/examples/line/line-defined.html
deleted file mode 100644
index bfa30f22..00000000
--- a/examples/line/line-defined.html
+++ /dev/null
@@ -1,89 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<style>
-
-body {
-  font: 10px sans-serif;
-}
-
-.axis path, .axis line {
-  fill: none;
-  stroke: #000;
-  shape-rendering: crispEdges;
-}
-
-.line {
-  fill: none;
-  stroke: steelblue;
-  stroke-width: 1.5px;
-}
-
-.dot {
-  fill: white;
-  stroke: steelblue;
-  stroke-width: 1.5px;
-}
-
-</style>
-<body>
-<script src="../../d3.js"></script>
-<script>
-
-var data = d3.range(40).map(function(i) {
-  return {x: i / 39, y: i % 5 ? (Math.sin(i / 3) + 2) / 4 : null};
-});
-
-var margin = {top: 10, right: 10, bottom: 20, left: 40},
-    width = 960 - margin.left - margin.right,
-    height = 500 - margin.top - margin.bottom;
-
-var x = d3.scale.linear()
-    .domain([0, 1])
-    .range([0, width]);
-
-var y = d3.scale.linear()
-    .domain([0, 1])
-    .range([height, 0]);
-
-var xAxis = d3.svg.axis()
-    .scale(x)
-    .orient("bottom");
-
-var yAxis = d3.svg.axis()
-    .scale(y)
-    .orient("left");
-
-var line = d3.svg.line()
-    .defined(function(d) { return d.y != null; })
-    .x(function(d) { return x(d.x); })
-    .y(function(d) { return y(d.y); });
-
-var svg = d3.select("body").append("svg")
-    .datum(data)
-    .attr("width", width + margin.left + margin.right)
-    .attr("height", height + margin.top + margin.bottom)
-  .append("g")
-    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
-
-svg.append("g")
-    .attr("class", "x axis")
-    .attr("transform", "translate(0," + height + ")")
-    .call(xAxis);
-
-svg.append("g")
-    .attr("class", "y axis")
-    .call(yAxis);
-
-svg.append("path")
-    .attr("class", "line")
-    .attr("d", line);
-
-svg.selectAll(".dot")
-    .data(data.filter(function(d) { return d.y; }))
-  .enter().append("circle")
-    .attr("class", "dot")
-    .attr("cx", line.x())
-    .attr("cy", line.y())
-    .attr("r", 3.5);
-
-</script>
diff --git a/examples/line/line-radial-defined.html b/examples/line/line-radial-defined.html
deleted file mode 100644
index cdc61615..00000000
--- a/examples/line/line-radial-defined.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<style>
-
-.line {
-  fill: none;
-  stroke: steelblue;
-  stroke-width: 1.5px;
-}
-
-</style>
-<body>
-<script src="../../d3.js"></script>
-<script>
-
-var data = d3.range(120).map(function(i) {
-  return i % 10
-      ? .8 + Math.sin(i / 3 * Math.PI) / 6
-      : null;
-});
-
-var width = 960,
-    height = 500;
-
-var radius = d3.scale.linear()
-    .domain([0, 1])
-    .range([height / 3, height / 2]);
-
-var angle = d3.scale.linear()
-    .domain([0, data.length])
-    .range([0, 2 * Math.PI]);
-
-var line = d3.svg.line.radial()
-    .defined(function(d) { return d != null; })
-    .interpolate("basis")
-    .radius(radius)
-    .angle(function(d, i) { return angle(i); });
-
-var svg = d3.select("body").append("svg")
-    .datum(data)
-    .attr("width", width)
-    .attr("height", height)
-  .append("g")
-    .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
-
-svg.append("path")
-    .attr("class", "line")
-    .attr("d", line);
-
-</script>
diff --git a/examples/line/line-radial.html b/examples/line/line-radial.html
deleted file mode 100644
index 87586b11..00000000
--- a/examples/line/line-radial.html
+++ /dev/null
@@ -1,47 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<style>
-
-.line {
-  fill: none;
-  stroke: steelblue;
-  stroke-width: 1.5px;
-}
-
-</style>
-<body>
-<script src="../../d3.js"></script>
-<script>
-
-var data = d3.range(120).map(function(i) {
-  return .8 + Math.sin(i / 3 * Math.PI) / 6;
-});
-
-var width = 960,
-    height = 500;
-
-var radius = d3.scale.linear()
-    .domain([0, 1])
-    .range([height / 3, height / 2]);
-
-var angle = d3.scale.linear()
-    .domain([0, data.length])
-    .range([0, 2 * Math.PI]);
-
-var line = d3.svg.line.radial()
-    .interpolate("basis-closed")
-    .radius(radius)
-    .angle(function(d, i) { return angle(i); });
-
-var svg = d3.select("body").append("svg")
-    .datum(data)
-    .attr("width", width)
-    .attr("height", height)
-  .append("g")
-    .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
-
-svg.append("path")
-    .attr("class", "line")
-    .attr("d", line);
-
-</script>
