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Scatterplot
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
| <title></title> | |
| </head> | |
| <body> | |
| <script> | |
| function getRandomArbitrary(min, max) { | |
| return Math.random() * (max - min) + min; | |
| } | |
| function drawScatterplot(){ | |
| var margin = {top: 20, right: 20, bottom: 30, left: 40}, | |
| width = 500 - margin.left - margin.right, | |
| height = 480 - margin.top - margin.bottom; | |
| var x = d3.scale.linear() | |
| .range([0, width]); | |
| var y = d3.scale.linear() | |
| .range([height, 0]); | |
| var color = d3.scale.category10(); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left"); | |
| 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 data = [], | |
| i; | |
| for (i = 0; i < 500; i++) { | |
| data.push({ | |
| temperature: getRandomArbitrary(20,30), | |
| humidity: getRandomArbitrary(20,60), | |
| location: "Location One" | |
| }); | |
| } | |
| for (i = 0; i < 500; i++) { | |
| data.push({ | |
| temperature: getRandomArbitrary(25,35), | |
| humidity: getRandomArbitrary(15,40), | |
| location: "Location Two" | |
| }); | |
| } | |
| for (i = 0; i < 500; i++) { | |
| data.push({ | |
| temperature: getRandomArbitrary(10,35), | |
| humidity: getRandomArbitrary(10,50), | |
| location: "Location Three" | |
| }); | |
| } | |
| data.forEach(function(d) { | |
| d.temperature = +d.temperature; | |
| d.humidity = +d.humidity; | |
| }); | |
| x.domain([0,80]).nice(); | |
| y.domain([0, 40]).nice(); | |
| 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("Humidity (%RH)"); | |
| 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("Temperature (deg C)"); | |
| svg.selectAll(".dot") | |
| .data(data) | |
| .enter().append("circle") | |
| .attr("class", "dot") | |
| .attr("r", 2.75) | |
| .attr("cx", function(d) { return x(d.humidity); }) | |
| .attr("cy", function(d) { return y(d.temperature); }) | |
| .style("fill", function(d) { return color(d.location); }); | |
| var legend = svg.selectAll(".legend") | |
| .data(color.domain()) | |
| .enter().append("g") | |
| .attr("class", "legend") | |
| .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; }); | |
| legend.append("rect") | |
| .attr("x", width - 18) | |
| .attr("width", 18) | |
| .attr("height", 18) | |
| .style("fill", color); | |
| legend.append("text") | |
| .attr("x", width - 24) | |
| .attr("y", 9) | |
| .attr("dy", ".35em") | |
| .style("text-anchor", "end") | |
| .text(function(d) { return d; }); | |
| } | |
| drawScatterplot(); | |
| </script> | |
| </body> | |
| </html> |
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