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Chicago Hardship Index Bar Chart
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Chicago Hardship Index by Community, 2008 - 2012</title> <style type="text/css"> body { background-color: white; font-family: Helvetica, Arial, sans-serif; } h1 { font-family: Arial; margin: 0; } p { font-size: 14px; color: #9C9EA0; margin: 10px 0px 0px 0px; } svg { background-color: white; } /*not working...figure out next goround*/ rect:hover { fill: orange; } /*style for axis*/ .axis path, .axis line { fill: none; stroke: black; shape-rendering: crispEdges; } .y.axis path, .y.axis line { opacity: 0 } .y.axis text { font-family: Arial; font-size: 14px; } .x.axis text { font-family: Arial; font-size: 20px; } .x.axis.top path, .x.axis.top line { opacity : 0 } </style> </head> <body> <h1> Chicago Hardship Index by Community, 2008 - 2012 </h1> <p> This data is based on US Census estimates of socioeconomic indicators between 2008 and 2012. The economic hardship index is standardized on a 0 to 100 scale, with a higher score indicating more hardship. The full dataset can be found at <a href=https://data.cityofchicago.org/Health-Human-Services/Census-Data-Selected-socioeconomic-indicators-in-C/kn9c-c2s2 target="_blank">the City of Chicago Data Portal</a>. </p> <script src="https://d3js.org/d3.v3.js"></script> <script type="text/javascript"> //height, width and padding variables, allowing for SVG size to change dynamically without //updates elsewhere in code if need be var w = 850 var h = 1200 var padding = [ 20, 30, 30, 175 ]; //Top, right, bottom, left //scales SVG to w var. mapped to data below (range = SVG pixels. Domain = data) var widthScale = d3.scale.linear() .range([ 0, w - padding[1] - padding[3] ]); //determines vertical position of bars, scaled to SVG height, with pixels rounded and 10% spacing var heightScale = d3.scale.ordinal() .rangeRoundBands([ padding[0], h - padding[2] ], 0.20); //create x-axis var var xAxis = d3.svg.axis() .scale(widthScale) .orient("bottom"); //places labels under axis var xAxisTop = d3.svg.axis() .scale(widthScale) .orient("top"); //create y-axis var var yAxis = d3.svg.axis() .scale(heightScale) .orient("left"); //create SVG element and append to body var svg = d3.select("body") .append("svg") .attr("width", w) .attr("height", h); //Load in contents of CSV file d3.csv("Selected Socioeconomic Indicators in Chicago from 2008-2012.csv", function(data) { //sort data in descending order based on hardshipIndex (need + to treat data as number instead of string) data.sort(function (a, b){ return d3.descending( +a.hardshipIndex, +b.hardshipIndex); }); //scales length of bars related to svg width and as a function of the data widthScale.domain([ 0, d3.max(data, function(d) { return +d.hardshipIndex; }) ]); //console.log(data.map(function(d) { return d.community; } )); //scales bar position based on the data and returns community for scale label heightScale.domain(data.map(function(d) { return d.community; } )); //heightScale.domain(d3.range(data.length)); //create rects variable for bar chart var rects = svg.selectAll("rect") .data(data) .enter() .append("rect") //define rectangle attributes rects.attr("x", padding[3]) //sets left edge to left padding //y position based on data order, number of data points .attr("y", function (d,i) { return heightScale(d.community); //heightScale mapped to community }) //bar length based on hardshipIndex, widthScale .attr("width", function (d) { return widthScale(d.hardshipIndex); }) //bar thickness (height) scaled based on rangeBand .attr("height", heightScale.rangeBand()) .attr("fill", "purple") //quick tooltip for testing .append("title") .text(function(d){ return d.community + "'s Hardship Index is " + d.hardshipIndex; }); //append x-axis group to svg and place at bottom svg.append("g") .attr("class", "x axis") .attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")")//positions axis .call(xAxis); //append x-axistop group to the top of svg and place at bottom svg.append("g") .attr("class", "x axis top") .attr("transform", "translate(" + padding[3] + "," + (padding[0]) + ")")//positions axis .call(xAxis); //append y-axis group to svg and place at left svg.append("g") .attr("class", "y axis") .attr("transform", "translate(" + (padding[3] - 5) + ",0)") .call(yAxis); //Log 'data' to the console, for verification. console.log(data); }); </script> </body> </html>
Modified
http://d3js.org/d3.v3.js
to a secure url
https://d3js.org/d3.v3.js