xxxxxxxxxx<html lang="en"> <head> <meta charset="utf-8"> <title>Life expectancy multiline chart: 1960 – 2011</title> <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script> <style type="text/css"> body { background-color: white; font-family: Helvetica, Arial, sans-serif; } h1 { font-size: 24px; margin: 0; } p { font-size: 14px; margin: 10px 0 0 0; } svg { background-color: white; } circle:hover { fill: orange; } path { stroke: gray; stroke-width: 0.5; } g.highlight path { stroke: steelblue; stroke-width: 2; } .axis path, .axis line { fill: none; stroke: black; stroke-width: 1; shape-rendering: crispEdges; } .axis text { font-family: sans-serif; font-size: 11px; } </style> <script> var buttons = ""; var letters = "0ABCDEFGHIJKLMNOPQRSTUVWXYZ"; var letterArray = letters.split(""); for(var i = 0; i < 27; i++){ var letter = letterArray.shift(); if(letter == "0"){ letter = "All"; } buttons += '<INPUT TYPE="button" VALUE='+letter+' onClick="drawChart(\''+letter+'\');"> '; } </script> </head> <body> <header> <h1>Life expectancy (1960 — 2012)</h1> <h3> With data from <a href="https://data.worldbank.org/indicator/SP.DYN.LE00.IN">World Bank</a></h2> </header> <script> document.write(buttons); </script> <script type="text/javascript"> //Dimensions and padding var w = 1000; var h = 500; function drawChart(alphabet) { d3.select("#chart").selectAll('svg').remove(); var svg = d3.select("#chart").append("svg").attr("width", w).attr("height", h); var padding = [ 20, 10, 50, 100 ]; //Top, right, bottom, left //Set up date formatting and years var dateFormat = d3.time.format("%Y"); //Set up scales var xScale = d3.time.scale() .range([ padding[3], w - padding[1] - padding[3] ]); var yScale = d3.scale.linear() .range([ padding[0], h - padding[2] ]); //Configure axis generators var xAxis = d3.svg.axis() .scale(xScale) .orient("bottom") .ticks(15) .tickFormat(function(d) { return dateFormat(d); }); var yAxis = d3.svg.axis() .scale(yScale) .orient("left"); //Configure line generator var line = d3.svg.line() .x(function(d) { return xScale(dateFormat.parse(d.year)); }) .y(function(d) { return yScale(+d.amount); }); //Load data d3.csv("LifeExpectancyAtBirth.csv", function(data) { //New array with all the years, for referencing later var years = ["1961", "1962", "1963", "1964", "1965", "1966", "1967", "1968", "1969", "1970", "1971", "1972", "1973", "1974", "1975", "1976", "1977", "1978", "1979", "1980", "1981", "1982", "1983", "1984", "1985", "1986", "1987", "1988", "1989", "1990", "1991", "1992", "1993", "1994", "1995", "1996", "1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004", "2005", "2006", "2007", "2008", "2009", "2010", "2011", "2012"]; //Create a new, empty array to hold our restructured dataset var dataset = []; //Loop once for each row in data for (var i = 0; i < data.length; i++) { //Create new object with this country's name and empty array dataset[i] = { country: data[i].CountryName, leab: [] }; //Loop through all the years for (var j = 0; j < years.length; j++) { // If value is not empty if (data[i][years[j]]) { //Add a new object to the leab data array //for this country dataset[i].leab.push({ year: years[j], amount: data[i][years[j]] }); } } } if(alphabet != "All") { var subsetdata = []; var j = 0; for(k = 0; k < dataset.length; k += 1) { if(dataset[k].country.charAt(0) == alphabet) { subsetdata[j] = dataset[k]; j++; } } dataset = subsetdata; } //Set scale domains xScale.domain([ d3.min(years, function(d) { return dateFormat.parse(d); }), d3.max(years, function(d) { return dateFormat.parse(d); }) ]); yScale.domain([ d3.max(dataset, function(d) { return d3.max(d.leab, function(d) { return +d.amount; }); }), 0 ]); //Make a group for each country var groups = svg.selectAll("g") .data(dataset) .enter() .append("g") .classed("highlight", function(d) { if (d.country == "United States" || d.country == "Sierra Leone" || d.country == "Mali" || d.country == "India" || d.country == "China") { return true; } else { return false; } }); //Append a title with the country name (so we get easy tooltips) groups.append("title") .text(function(d) { return d.country; }); //Within each group, create a new line/path, //binding just the leab data to each one groups.selectAll("path") .data(function(d) { return [ d.leab ]; }) .enter() .append("path") .attr("class", "line") .attr("d", line) .attr("fill", "none") .attr("stroke-width", 2); //Axes svg.append("g") .attr("class", "x axis") .attr("transform", "translate(0," + (h - padding[2]) + ")") .call(xAxis); svg.append("g") .attr("class", "y axis") .attr("transform", "translate(" + (padding[3]) + ",0)") .call(yAxis); }); } </script> <script>window.onload = function() { drawChart("All"); }; </script> <div id="chart"></div> </body></html> Modified http://d3js.org/d3.v3.js to a secure url
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