xxxxxxxxxx<meta charset="utf-8"><style type="text/css"> /*css goes here*/ .header{ text-align: center; font-weight: bold; border-bottom: thin solid black; margin-left: 100px; margin-right: 100px; } svg{ border: thin solid #f0f; } .axis text { font-size: 12px; fill: #777; } .axis path { display: none; } .axis line { stroke-width:1px; stroke: #ccc; opacity: 0.7;/* stroke-dasharray: 2px 2px;*/ } .line { fill: none;/* stroke: steelblue;*/ stroke-width: 2px; cursor: pointer; } .circle-container{ cursor: pointer; } .info{ position: absolute; top:100px; left:100px; font-size: 20px; color:#4682B4; font-weight: bold; opacity: 0; }</style><body> <!-- html goes here --> <h1 class="header">Change In Median Income By Country (1975 - 2010)</h1> <div class="info">Foobar</div></body><script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js" charset="utf-8"></script><script> //JS to go here var margin = {top: 20, right: 30, bottom: 50, left: 20}; var color = d3.scale.category20b(); var width = 1400 - margin.left - margin.right, height = 700 - margin.top - margin.bottom; var svg = d3.select("body").append("svg") .attr("width", width + margin.left + margin.right) .attr("height", height + margin.top + margin.bottom) .append("g") .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); var y = d3.scale.linear() .range([height, 0]); var x = d3.scale.linear() .range([0,width]); var yAxis = d3.svg.axis() .scale(y) .tickSize(-width) //.tickPadding(8) //.ticks(10,"+") .orient("right"); var xAxis = d3.svg.axis() .scale(x) .tickSize(-height) //.tickPadding(8) // .ticks(4) .tickFormat(d3.round) .orient("bottom"); if(typeof(String.prototype.trim) === "undefined"){ String.prototype.trim = function() { return String(this).replace(/^\s+|\s+$/g, ''); }; } function fetchInt(string){ return +string.replace(",",""); } function mouseover(){ var element = d3.select(this); var data = element[0][0].__data__; // d3.selectAll(".circle-svg").transition().duration(200) // .style("opacity",function(d){return (d.country===data.country)?1:0.1;}); // d3.selectAll(".line").transition().duration(200) // .style("opacity",function(d){return (d[0].country===data.country)?1:0.1;}); try{ var info = d3.select(".info") .style("opacity",1) .text(data[0].country); } catch(err){ var info = d3.select(".info") .style("opacity",1) .text(data.country); } } function mouseleave(){ var element = d3.select(this); var info = d3.select(".info").style("opacity",0); d3.selectAll(".circle-svg").transition().duration(200).style("opacity",1); d3.selectAll(".line").transition().duration(200).style("opacity",1); } d3.tsv("./allCountries.tsv",function(error,data){ if(error){ alert("error!"); return;} data.forEach(function(d){ d.cop5 = fetchInt(d.cop5); d.cop10 = fetchInt(d.cop10); d.cop20 = fetchInt(d.cop20); d.cop30 = fetchInt(d.cop30); d.cop40 = fetchInt(d.cop40); d.cop50 = fetchInt(d.cop50); d.cop60 = fetchInt(d.cop60); d.cop70 = fetchInt(d.cop70); d.cop80 = fetchInt(d.cop80); d.cop90 = fetchInt(d.cop90); d.cop95 = fetchInt(d.cop95); d.year = +d.dataset.split(" ")[d.dataset.split(" ").length-1]; d.country = d.dataset.replace(/[0-9]/g, "").replace("LIS - ","").trim(); }); x.domain(d3.extent(data,function(d){return d.year;})); y.domain(d3.extent(data,function(d){return d.cop50;})); data = d3.nest().key(function(d){ return d.country;}).entries(data); var line = d3.svg.line() .x(function(d) { return x(d.year); }) .y(function(d) { return y(d.cop50); }); //console.log(data); svg.append("g") .attr("class", "x axis") .attr("transform", "translate(0," + (height) + ")") .call(xAxis); svg.append("g") .attr("class", "y axis") .attr("transform", "translate("+(width-10)+",0)") .call(yAxis); //Plain vanilla JS, nothing to do with d3...pretty nice //var usa = data.filter(function(d){return d.country === "United States";}); for(var i=0; i<data.length; i++){ //console.log(data[i]); svg.append("g") .attr("class","circle-container") .selectAll("circle") .data(data[i].values) .enter() .append("circle") .attr("r",4) .attr("class","circle-svg") .style("fill",color(i)) .attr("cx",function(d){return x(d.year); }) .attr("cy",function(d){return y(d.cop50); }) .on("mouseover",mouseover) .on("mouseleave",mouseleave); svg.append("path") .datum(data[i].values) .attr("class", "line") .style("stroke",color(i)) .attr("d", line) .on("mouseover",mouseover) .on("mouseleave",mouseleave); } //This works too, just specify fill none //But this never gives you a data joined to the element..the above is technically better // svg.append("path").attr("d",line(data)); });</script> https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js