##UFO Sightings: Time of Day
Created using data from the National UFO Reporting Center
Modified from an example created by Mike Bostock.
Last active
August 29, 2015 14:14
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UFO Sightings: Time of Day
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .line { | |
| fill: none; | |
| stroke: steelblue; | |
| stroke-width: 4px; | |
| } | |
| #chart { | |
| font: 14px sans-serif; | |
| border: 1px black; | |
| width: 775px; | |
| position: relative; | |
| } | |
| </style> | |
| <body> | |
| <div id="chart"> | |
| </div> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| //======================= | |
| // Initialize variables | |
| //======================= | |
| // {top: 45, right: 80, bottom: 30, left: 60} | |
| var margin = {top: 45, right: 80, bottom: 30, left: 60}, | |
| width = 750 - margin.left - margin.right, | |
| height = 450 - margin.top - margin.bottom; | |
| var parseDate = d3.time.format("%_d %H").parse; | |
| var x = d3.time.scale() | |
| .range([0, width]); | |
| var y = d3.scale.linear() | |
| .range([height, 0]); | |
| var color = d3.scale.category10(); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left"); | |
| var line = d3.svg.line() | |
| .interpolate("basis") | |
| .x(function(d) { return x(d.Time); }) | |
| .y(function(d) { return y(d.sightings); }); | |
| var svg = d3.select("#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 + ")"); | |
| //======================= | |
| // Read in the data | |
| //======================= | |
| d3.csv("ufo_night.csv", function(error, data) { | |
| color.domain(d3.keys(data[0]).filter(function(key) { return key !== "Time"; })); | |
| data.forEach(function(d) { | |
| d.Time = parseDate(d.Time); | |
| }); | |
| var days = color.domain().map(function(name) { | |
| return { | |
| name: name, | |
| values: data.map(function(d) { | |
| return {Time: d.Time, sightings: +d[name]}; | |
| }) | |
| }; | |
| }); | |
| x.domain(d3.extent(data, function(d) { return d.Time; })); | |
| y.domain([ | |
| d3.min(days, function(c) { return d3.min(c.values, function(v) { return v.sightings; }); }), | |
| d3.max(days, function(c) { return d3.max(c.values, function(v) { return v.sightings; }); }) | |
| ]); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis) | |
| .append("text") | |
| .attr("transform", "rotate(-90)") | |
| .attr("y", 6) | |
| .attr("dy", ".71em") | |
| .style("text-anchor", "end") | |
| .text("UFO Sightings"); | |
| // Bind the data to the g element | |
| var day_week = svg.selectAll(".day_week") | |
| .data(days) | |
| .enter().append("g") | |
| .attr("class", "day_week"); | |
| //===================== | |
| // Plot the data | |
| //===================== | |
| // Add the line and color it | |
| day_week.append("path") | |
| .attr("class", "line") | |
| .attr("d", function(d) { return line(d.values); }) | |
| .style("stroke", function(d) { return color(d.name); }); | |
| //======================= | |
| // Add Axes | |
| //======================= | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom") | |
| .tickSize(20, 0) | |
| .tickFormat(d3.time.format("%_I %p")); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis) | |
| .selectAll(".tick text") | |
| .style("text-anchor", "start") | |
| .attr("x", 6) | |
| .attr("y", 6); | |
| //======================= | |
| // Add Legend | |
| //======================= | |
| // Add legend | |
| 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; }); | |
| }); | |
| </script> |
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| Time | Friday | Saturday | Sunday | Monday | Tuesday | Wednesday | Thursday | |
|---|---|---|---|---|---|---|---|---|
| 1 6 | 182 | 168 | 144 | 179 | 204 | 187 | 188 | |
| 1 7 | 150 | 140 | 112 | 134 | 154 | 140 | 146 | |
| 1 8 | 143 | 151 | 111 | 128 | 135 | 128 | 126 | |
| 1 9 | 157 | 176 | 150 | 135 | 138 | 137 | 136 | |
| 1 10 | 167 | 207 | 174 | 155 | 141 | 145 | 148 | |
| 1 11 | 178 | 227 | 195 | 173 | 160 | 167 | 159 | |
| 1 12 | 177 | 237 | 201 | 176 | 164 | 171 | 161 | |
| 1 13 | 177 | 239 | 216 | 176 | 183 | 180 | 164 | |
| 1 14 | 180 | 238 | 233 | 165 | 172 | 172 | 172 | |
| 1 15 | 192 | 243 | 249 | 174 | 189 | 186 | 192 | |
| 1 16 | 252 | 315 | 290 | 219 | 245 | 248 | 265 | |
| 1 17 | 354 | 454 | 396 | 340 | 390 | 360 | 377 | |
| 1 18 | 571 | 686 | 580 | 532 | 615 | 562 | 587 | |
| 1 19 | 875 | 1030 | 865 | 801 | 877 | 854 | 873 | |
| 1 20 | 1307 | 1550 | 1198 | 1081 | 1180 | 1220 | 1280 | |
| 1 21 | 1598 | 1962 | 1416 | 1260 | 1328 | 1451 | 1474 | |
| 1 22 | 1582 | 1986 | 1395 | 1195 | 1269 | 1387 | 1403 | |
| 1 23 | 1470 | 1870 | 1310 | 1107 | 1150 | 1275 | 1226 | |
| 2 0 | 566 | 670 | 690 | 497 | 556 | 553 | 507 | |
| 2 1 | 483 | 578 | 585 | 424 | 481 | 457 | 446 | |
| 2 2 | 339 | 418 | 409 | 298 | 355 | 325 | 326 | |
| 2 3 | 264 | 314 | 321 | 255 | 264 | 251 | 263 | |
| 2 4 | 235 | 254 | 266 | 242 | 244 | 248 | 233 | |
| 2 5 | 206 | 196 | 203 | 214 | 220 | 209 | 213 |
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