Uncaught TypeError: Cannot read property 'linear' of undefined
d3.jsd3.js Problem Overview
I'm new to D3 and getting the following error in my demo script -
FirstD3.jsp:31 Uncaught TypeError: Cannot read property 'linear' of undefined
My demo code is as follow
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<title>Linear Scales</title>
<style type="text/css">
</style>
</head>
<body>
<script type="text/javascript">
var dataset = [
[ 5, 20 ],
[ 460, 90 ],
[ 250, 50 ],
[ 100, 33 ],
[ 330, 95 ],
[ 410, 12 ],
[ 468, 44 ],
[ 25, 67 ],
[ 85, 21 ],
[ 220, 88 ]
];
var w = 500;
var h = 100;
var xScale = d3.scale.linear()
.domain([0, d3.max(dataset, function(d) { return d[0]; })])
.range([0, w]);
var yScale = d3.scale.linear()
.domain([0, d3.max(dataset, function(d) { return d[1]; })])
.range([0, h]);
var svg = d3.select("body")
.append("svg")
.attr("height", h)
.attr("width", w);
svg.selectAll("circle")
.data(dataset)
.enter()
.append("circle")
.attr("cx", function (d) {
return xScale(d[0]);
})
.attr("cy", function(d) {
return yScale(d[1]);
})
.attr("r", function (d) {
return Math.sqrt(h-(d[1]));
});
svg.selectAll("text")
.data(dataset)
.enter()
.append("text")
.text(function (d) {
return d[0]+","+d[1];
})
.attr("x", function (d) {
return xScale(d[0]);
})
.attr("y", function (d) {
return yScale(d[1]);
})
.attr("font-size", "11px")
.attr("fill", "red");
</script>
</body>
</html>
what is causing this error? and how to solve it
d3.js Solutions
Solution 1 - d3.js
In D3 v4 it is no longer named d3.scale.linear(). Use d3.scaleLinear() instead.
Solution 2 - d3.js
Thanks for the answer, I've solved this error for the following code (I'm studing D3.js) :
var colorScale = d3.scale.linear().domain([0, 100]).range(["#add8e6", "blue"]);
With the following error (inside the web page) :
Uncaught TypeError: Cannot read property 'linear' of undefined at index.html:22