D3 Examples - Code for Linear Scale

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>Creating HTML Elements from Data</title>
        <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
        <style type="text/css">
            
            
            body {
                background-color: #ddddff;
            }
​
            svg {
                background-color: white;
            }
​
        </style>
    </head>
    <body>
​
        <script type="text/javascript">     
​
            var w =300;
            var h = 400;
            
            var widthScale = d3.scale.linear()
            .range ([0,w]);
            
        
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
​
​
​
            d3.csv("HardshipChicago.csv", function(data) {
                
                data.sort(function(a,b) {
                    return d3.descending (+a.Hardship_Index, +b.Hardship_Index);
                });
                
                widthscale.domain([0,d3.max(data, function(d) {
                    return +d.Hardship_Index;
                }) ]);
                
            var rects = svg.selectAll("rect")
                    .data(data)
                    .enter()
                    .append("rect")
            
            rects.attr("x",0)
                    .attr("y", function(d, i) {
                        return i * 10;
                    })
                    .attr("width", function(d) {
                        return widthScale(d.Hardship_Index);
                    })
                    .attr("height", 8)
                    .append ("title")
                    .text(function(d) {
                    return d.community + "'s Hardship Index Score is" +d.Hardship_Index;
                });
            });
            
                
​
​
        </script>
​
    </body>
</html>
    