sources: https://cepa.stanford.edu/seda/data-archive
d3.js source:
http://bl.ocks.org/weiglemc/6185069
Tooltip example - http://www.d3noob.org/2013/01/adding-tooltips-to-d3js-graph.html
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July 4, 2016 23:34
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school district educational results and median income
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| <!DOCTYPE html> | |
| <html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 11px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .dot { | |
| stroke: #000; | |
| } | |
| .tooltip { | |
| position: absolute; | |
| width: 200px; | |
| height: 28px; | |
| pointer-events: none; | |
| } | |
| </style> | |
| <body> | |
| <div id="correl-1-title">Median Income | |
| <div id="correl-1-chart"></div> | |
| </div> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var margin = {top: 20, right: 20, bottom: 30, left: 40}, | |
| width = 1000 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var xValue = function(d) { return d.income50perc;}, // data -> value | |
| xScale = d3.scale.linear().range([0, width]), // value -> display | |
| xMap = function(d) { return xScale(xValue(d));}, // data -> display | |
| xAxis = d3.svg.axis().scale(xScale).orient("bottom"); | |
| var yValue = function(d) { return d["averagetest"];}, // data -> value | |
| yScale = d3.scale.linear().range([height, 0]), // value -> display | |
| yMap = function(d) { return yScale(yValue(d));}, // data -> display | |
| yAxis = d3.svg.axis().scale(yScale).orient("left"); | |
| var svg = d3.select("#correl-1-chart").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 tooltip = d3.select("body").append("div") | |
| .attr("class", "tooltip") | |
| .style("opacity", 0); | |
| d3.csv("https://raw.githubusercontent.com/nadinesk/nadinesk.github.io/master/d3Data/schooldata2.csv", function(error, data) { | |
| data.forEach(function(d) { | |
| d.income50perc = +d.income50perc; | |
| d["averagetest"] = +d["averagetest"]; | |
| }); | |
| xScale.domain([d3.min(data, xValue)-1, d3.max(data, xValue)+1]); | |
| yScale.domain([d3.min(data, yValue)-0.2, d3.max(data, yValue)+0.2]); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis) | |
| .append("text") | |
| .attr("class", "label") | |
| .attr("x", width) | |
| .attr("y", -6) | |
| .style("text-anchor", "end") | |
| .text("median income"); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis) | |
| .append("text") | |
| .attr("class", "label") | |
| .attr("transform", "rotate(-90)") | |
| .attr("y", 6) | |
| .attr("dy", ".71em") | |
| .style("text-anchor", "end") | |
| .text("grades ahead/below"); | |
| svg.selectAll(".dot") | |
| .data(data) | |
| .enter().append("circle") | |
| .attr("class", "dot") | |
| .attr("r", function(d) { if (d.totalenrollment >= 400000) | |
| { | |
| return 25 | |
| } | |
| else if (d.totalenrollment < 400000 && d.totalenrollment >= 100000) | |
| { | |
| return 20 | |
| } | |
| else if (d.totalenrollment < 100000 && d.totalenrollment >= 50000) | |
| { | |
| return 15 | |
| } | |
| else if (d.totalenrollment < 50000 && d.totalenrollment >= 10000) | |
| { | |
| return 10 | |
| } | |
| else if (d.totalenrollment < 10000 && d.totalenrollment >= 1000) | |
| { | |
| return 8 | |
| } | |
| else | |
| return 4 | |
| }) | |
| .attr("cx", xMap) | |
| .attr("cy", yMap) | |
| .style("fill", function(d) { | |
| if (d.totalenrollment >= 400000) | |
| { | |
| return "rgba(255, 116, 140,1.0)" | |
| } | |
| else if (d.totalenrollment < 400000 && d.totalenrollment >= 100000) | |
| { | |
| return "rgba(255, 116, 140,0.8)" | |
| } | |
| else if (d.totalenrollment < 100000 && d.totalenrollment >= 50000) | |
| { | |
| return "rgba(255, 116, 140,0.7)" | |
| } | |
| else if (d.totalenrollment < 50000 && d.totalenrollment >= 10000) | |
| { | |
| return "rgba(255, 116, 140,0.6)" | |
| } | |
| else if (d.totalenrollment < 10000 && d.totalenrollment >= 1000) | |
| { | |
| return "rgba(255, 116, 140,0.5)" | |
| } | |
| else | |
| return "rgba(255, 116, 140,0.1)" | |
| }) | |
| .style("stroke", "white") | |
| .on("mouseover", function(d) { | |
| tooltip.transition() | |
| .duration(200) | |
| .style("opacity", .9); | |
| tooltip.html(d["educationagencyname"] + "<br/> (" + xValue(d) | |
| + ", " + yValue(d) + ")") | |
| .style("left", (d3.event.pageX + 5) + "px") | |
| .style("top", (d3.event.pageY - 28) + "px"); | |
| }) | |
| .on("mouseout", function(d) { | |
| tooltip.transition() | |
| .duration(500) | |
| .style("opacity", 0); | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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