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week3.html
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<!DOCTYPE html>
<meta charset="utf-8">
<style>
path {
stroke-linejoin: round;
}
.points{
fill:black;
}
.land {
fill: #ddd;
}
.states {
stroke: #222222;
}
.legendEntry {
font-size: 12px;
}
.counties {
fill: none;
stroke: black;
stroke-width: 0.5px;
}
</style>
<body>
<h1>Average Annual Income by State 2014</h1>
<p> Data comes from the <a href=" http://kff.org/other/state-indicator/median-annual-income/", target="_blank">Kaiser Family Foundation</a></p>
<script src="http://d3js.org/d3.v3.js"></script>
<script src="http://d3js.org/queue.v1.min.js"></script>
<script src="http://d3js.org/topojson.v1.min.js"></script>
<script>
var width = 1000,
height = 500;
//Data on 2014 median annaul income taken from the Kaiser Family Foundation, http://kff.org/other/state-indicator/median-annual-income/
var data=[{"16":53438, //ID
"53":59068, //WA
"27":67244, //MN
"38":60730, //ND
"23":51710, //ME
"26":52005,//Michigan
"55":58080,//WI
"30":51102,//MT
"41":58875, //OR
"46":53053, //SD
"33":73397, //NH
"50":50708, //VT
"36":54310, //NY
"56":55690,//WO
"19":57810,//IA
"31":56870,//NE
"25":63151,//MA
"17":54916,//IL
"42":55173,//PA
"9":70161,//CT
"44":58633,//RI
"6":60487,//CA
"49":63383,//UT
"32":49875,//NV
"39":49644,//OH
"18":48060,//IN
"34":65243,//NJ
"8":60940, //CO
"54":39552,//WV
"29":56630,//MO
"20":53444,//KS
"10":57522,//DE
"24":76165,//MD
"21":42786,//KY
"51":66155,//VA
"11":68277,//DC?
"4":49254,//AZ
"40":47199,//OK
"35":46686,//NM
"47":43716,//TN
"37":46784,//NC
"48":53875,//TX
"5":44922, //AR
"45":44929,//SC
"1":42278,//AL
"13":49555,//GA
"28":35521,//MS
"22":42406,//LA also?
"12":46140,//FL
"15":71223, //HI
"2":67629//,// AK
//"72":19518//PR THIS DATA FROM U.S. CENSUS http://www.census.gov/newsroom/press-releases/2014/cb14-17.html Removed because
//outliar status skewed results
}];//?guam? ?samoa? //removed because skewed results and also too hard to see. also no 2014 data could be found
var projection = d3.geo.albers();
var path = d3.geo.path()
.projection(projection)
.pointRadius(1);
var color_scale = d3.scale.quantize()
.domain(d3.values(data[0]).sort(d3.ascending))
.range(["#bae4bc","#7bccc4","#43a2ca","#0868ac"]);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
queue()
.defer(d3.json, "us.json")
.await(ready);
function ready(error, us) {
svg.append("path")
.datum(topojson.feature(us, us.objects.land))
.attr("class", "land")
.attr("d", path);
svg.append("g")
.attr("class", "states")
.selectAll("path")
.data(topojson.feature(us, us.objects.states).features)
.enter()
.append("path")
.attr("d", path)
.style("fill", function(d){return color_scale(data[0][d.id]);});
svg.append("path")
.attr("class", "counties")
//.selectAll("path")
.data(topojson.feature(us, us.objects.counties).features)
.enter()
.append("path")
.attr("d", path)
.style("fill", function(d){return color_scale(data[0][d.id]);});
//svg.append("path")
// .data(topojson.feature(us, us.objects.counties).features)
// .enter()
//.attr("class", "counties")
//.attr("d", function(d) { return "M" + d.map(function(d) { return d.join("L"); }).join("ZM") + "Z"; });
var legend = svg.selectAll('g.legendEntry')
.data(color_scale.range().reverse())
.enter()
.append('g').attr('class', 'legendEntry');
legend
.append('rect')
.attr("x", width - 985)
.attr("y", function(d, i) {
return i * 20;
})
.attr("width", 10)
.attr("height", 10)
.style("stroke", "black")
.style("stroke-width", 1)
.style("fill", function(d){return d;});
myformat = d3.format(',')
legend
.append('text')
.attr("x", width - 965) //leave 5 pixel space after the <rect>
.attr("y", function(d, i) {
return i * 20;
})
.attr("dy", "0.8em") //place text one line *below* the x,y point
.text(function(d,i) {
var extent = color_scale.invertExtent(d);
return "$" + myformat(Math.round(extent[0])) + " - $" + myformat(Math.round(extent[1]));
});
}
</script>
</body>
</html>