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Fatal Encounters Deaths by Year
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license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.bar { | |
fill: lightslategray; | |
} | |
.axis { | |
font: 10px sans-serif; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
.x.axis path { | |
display: none; | |
} | |
</style> | |
<body> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
<script> | |
var sourceUrl = "https://numeracy.co/projects/45gLWhWroC/fatal-encounters-summary.csv" | |
function groupBy(d) { | |
return (new Date(d.Date)).getFullYear() | |
} | |
function xValue(d) { | |
return x(d.key); | |
} | |
function yValue(d) { | |
return y(d.values.length); | |
} | |
var margin = {top: 20, right: 20, bottom: 30, left: 40}, | |
width = 960 - margin.left - margin.right, | |
height = 500 - margin.top - margin.bottom; | |
var x = d3.scale.ordinal() | |
.rangeRoundBands([0, width], .1); | |
var y = d3.scale.linear() | |
.range([height, 0]); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient("bottom"); | |
var yAxis = d3.svg.axis() | |
.scale(y) | |
.orient("left") | |
.ticks(5); | |
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 + ")"); | |
d3.csv(sourceUrl) | |
.get(function(error, data) { | |
if (error) throw error; | |
var deathsByYear = d3.nest() | |
.key(groupBy) | |
.entries(data) | |
x.domain(deathsByYear.map(function(d) { return d.key; })); | |
y.domain([0, d3.max(deathsByYear, function(d) { return d.values.length })]) | |
svg.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(-3," + height + ")") | |
.call(xAxis); | |
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("Deaths"); | |
svg.selectAll(".bar") | |
.data(deathsByYear) | |
.enter().append("rect") | |
.attr("y", 500) | |
.attr("class", "bar") | |
.attr("x", xValue) | |
.attr("width", x.rangeBand()) | |
.attr("y", yValue) | |
.attr("height", function(d) { return height - yValue(d); }); | |
}); | |
</script> |
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