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<html lang="en">
<head>
<meta charset="utf-8">
<title>Exercise 3- Sorting Education data</title>
<script type="text/javascript" src="https://d3js.org/d3.v3.min.js"></script>
<link href='https://fonts.googleapis.com/css?family=Lato' rel='stylesheet' type='text/css'>
<style type="text/css">
body {background-color: white; font-family: Lato;
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.axis path,
.axis line {
fill: none;
stroke: #888888;
stroke-opacity: .75;
shape-rendering: crispEdges;
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.axis text {
font-family: sans-serif;
font-size: 11px;
fill:#888888;
}
.y.axis path,
.y.axis line {
opacity: 0;
}
svg, div { background-color: #F9F1DD;
}
rect {fill:#94B2BD;}
h1, p {
position: relative;
left: 10px;
color: #333333; }
div {text-align:center; width:315px; font-size:12px; font-weight:bold; padding-top:6px; padding-bottom:6px; }
#notes {width:700px; text-align:left; background-color:white; font-size:12pt;}
</style>
</head>
<body>
<h1>Algebra Scores for U.S. 8th Grade Students by Race/ethnicity: 2013</h1>
<script type="text/javascript">
var city = "San Diego";
var w = 315; // svg width
var h = 130;
var padding = [ 20, 10, 30, 60 ]; //Top, right, bottom, left
// X axis prep
var widthScale = d3.scale.linear()
.range([ 0, w - padding[1] - padding[3] ]);
var heightScale = d3.scale.ordinal()
.rangeRoundBands([ padding[0], h - padding[2] ], 0.1);
var xAxis = d3.svg.axis()
.scale(widthScale)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(heightScale)
.orient("left");
d3.select("body").append("div").text(city);
var svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
d3.csv("gr4gr8_math_v3short.csv", function(data) {
// Filter and sort data
data = data.filter(function(d){return d.Year == 2013 && d.Grade == 8 && d.Measure=="algebra" && d.Jurisdiction == city });
data.sort(function(a,b){return d3.descending(a.Score, b.Score)})
widthScale.domain([ 0, d3.max(data, function(d) {
return +d.Score;
}) ]);
heightScale.domain(data.map(function(d) { return d.Race; } ));
// NEW !!!!!!!!!!!!!
var rects = svg.selectAll("rect")
.data(data)
.enter()
.append("rect");
rects.attr("x", padding[3])
.attr("y", function(d) {
return heightScale(d.Race);
})
.attr("width", function(d) {
return widthScale(d.Score);
})
.attr("height", heightScale.rangeBand())
// .attr("fill", "steelblue")
.append("title")
.text(function(d) {
return "8th grade algebra score for " + d.Race + " is " + d.Score;
});
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate(" + padding[3] + ",0)")
.call(yAxis);
// Value labels
var texts = svg.selectAll("text")
.data(data)
.enter()
.append("text");
texts.attr("x", function(d) {
return (+d.Score/1.2+3);
})
.attr("y", function(d, i) {
return i * 25+15;
})
.attr("fill","#777777")
.style("font-family", "Lato")
.style("font-size", "12px")
.text(function(d) { return d.Score;});
});
</script>
<div id="notes"><h3>Notes</h3>
<p>U.S. schools are under pressure to close achievement gaps observed across different race/ethnicity groups. This chart looks at scores for U.S. 8th grade students in algebra for 2013 for San Diego. I would like to expand the visualization comparing more cities in a small multiples display. So far, I have this <a href="https://bl.ocks.org/devdiva8/raw/397d86b6ca070e8d0580">small multiples prototype</a>.</p>
<p>Source: National Center for Education Statistics, National Assessment of Educational Progress (NAEP) <a href=""https://nces.ed.gov/nationsreportcard/naepdata/>Data Explorer</a>.</p>
<p>Data for Asian/Pacific Islander and American Indian/Alaska Native groups were removed, because in some cells "reporting standards [were] not met." However, data for these groups are included in "All races" scores.</p>
</div>
</body>
</html>
Modified http://d3js.org/d3.v3.min.js to a secure url
https://d3js.org/d3.v3.min.js