kcsluis/index.html

## index.html
<!DOCTYPE html>

<head>
	<meta charset="utf-8">
	<title></title>
	<style type="text/css">
	body {
		font-family: sans-serif;
	}
	.barPositive {
		fill: #333;
	}
	.barNegative {
		fill: #ccc;
	}
	.axis text {
		font-size: 10px;
		fill: #777;
	}
	.axis path {
		display: none;
	}
	.axis line {
		stroke-width:1px;
		stroke: #ccc;
		stroke-dasharray: 2px 2px;
	}
</style>
</head>

<body>
</body>

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js" charset="utf-8"></script>
<script>

var margin = {top: 20, right: 20, bottom: 20, left: 60};
var width = 960 - margin.left - margin.right,
		height = 500 - margin.top - margin.bottom;

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 + ")");

// ordinal scale and rangeRoundBands are uniquely important for bar graphs
var x = d3.scale.ordinal()
		.rangeRoundBands([0, width], 0.33);
var y = d3.scale.linear()
		.range([height, 0]);

var xAxis = d3.svg.axis()
		.scale(x)
		.tickSize(-height)
		.tickPadding(8)
		.orient("bottom");
var yAxis = d3.svg.axis()
		.scale(y)
		.tickSize(-width)
		.tickPadding(8)
		.orient("left");

d3.tsv("jobs.tsv", ready);

function ready(err, data) {
	if (err) throw "error loading data";

	data.forEach(function(d) {
		d.jobs_change = +d.jobs_change;
		d.private_job_change = +d.private_job_change;
		d.unemployment_rate = +d.unemployment_rate;
		var s = d.month_year.split("-");
		d.date = new Date(s[0], (+s[1]-1) );
	});

	y.domain(d3.extent(data, function (d) { return d.jobs_change; }));
	data.sort(function(a,b) { return a.date - b.date; });
	x.domain(data.map( function (d) { return d.month_year; }));

	svg.append("g")
			.attr("class", "x axis")
			.attr("transform", "translate(0," + (height) + ")")
			.call(xAxis)
			// selectAll text to update axis text
			.selectAll("text")
			.text(function (d) {
				var dateSplit = d.split("-");
				if ( dateSplit[1] === "01" ) {
					return dateSplit[0];
				};
 			});
	svg.append("g")
			.attr("class", "y axis")
			.call(yAxis)
			.selectAll("text")
			.text( function	(d) {
				var changeLabel = d;
				return d = (changeLabel > 0) ? "+" + d + "k" : d + "k";
			});

	var rect = svg.append("g").attr("class", "g-rect-group").selectAll("rect")
			.data(data)
			.enter()
			.append("rect")
			// ternary to add positive or negative class to bars
			.attr("class", function (d) {
				return (d.jobs_change > 0) ? 'bar barPositive' : 'bar barNegative';
			})
			// .rangeBand() function with rangeRoundBand to properly space bars
			.attr("width", x.rangeBand())
			.attr("x", function(d) { return x(d.month_year); })
			// fancy absolute values to handle positive and negative values
			.attr("y", function(d) { return y(Math.max(d.jobs_change, 0)); })
			.attr("height", function(d) { return Math.abs(y(d.jobs_change) - y(0)); });

};

</script>

## jobs.tsv

          
            month_year
            jobs_change
            private_job_change
            unemployment_rate

            
              2008-11
              -803
              -797
              6.8

            
              2008-12
              -661
              -658
              7.3

            
              2009-01
              -818
              -839
              7.8

            
              2009-02
              -724
              -725
              8.3

            
              2009-03
              -799
              -787
              8.7

            
              2009-04
              -692
              -802
              8.9

            
              2009-05
              -361
              -312
              9.4

            
              2009-06
              -482
              -426
              9.5

            
              2009-07
              -339
              -296
              9.5

            
              2009-08
              -231
              -219
              9.6

            
              2009-09
              -199
              -184
              9.8

            
              2009-10
              -202
              -232
              10

            
              2009-11
              -42
              -42
              9.9

            
              2009-12
              -171
              -120
              9.9

            
              2010-01
              -40
              -40
              9.7

            
              2010-02
              -35
              -27
              9.8

            
              2010-03
              189
              141
              9.8

            
              2010-04
              239
              193
              9.9

            
              2010-05
              516
              84
              9.6

            
              2010-06
              -167
              92
              9.4

            
              2010-07
              -58
              92
              9.5

            
              2010-08
              -51
              128
              9.6

            
              2010-09
              -27
              115
              9.5

            
              2010-10
              220
              196
              9.5

            
              2010-11
              121
              134
              9.8

            
              2010-12
              120
              140
              9.4

            
              2011-01
              110
              119
              9.1

            
              2011-02
              220
              257
              9

            
              2011-03
              246
              261
              8.9

            
              2011-04
              251
              264
              9

            
              2011-05
              54
              108
              9

            
              2011-06
              84
              102
              9.1

            
              2011-07
              96
              175
              9.1

            
              2011-08
              85
              52
              9.1

            
              2011-09
              202
              216
              9

            
              2011-10
              112
              139
              8.9

            
              2011-11
              157
              178
              8.7

            
              2011-12
              223
              234
              8.5

            
              2012-01
              275
              277
              8.3

            
              2012-02
              259
              254
              8.3

            
              2012-03
              143
              147
              8.2

            
              2012-04
              68
              85
              8.1

            
              2012-05
              87
              116
              8.2

            
              2012-06
              45
              63
              8.2

            
              2012-07
              181
              163
              8.3

            
              2012-08
              142
              97
              8.1

            
              2012-09
              114
              104
              7.8
	<!DOCTYPE html>

	<head>
	<meta charset="utf-8">
	<title></title>
	<style type="text/css">
	body {
	font-family: sans-serif;
	}
	.barPositive {
	fill: #333;
	}
	.barNegative {
	fill: #ccc;
	}
	.axis text {
	font-size: 10px;
	fill: #777;
	}
	.axis path {
	display: none;
	}
	.axis line {
	stroke-width:1px;
	stroke: #ccc;
	stroke-dasharray: 2px 2px;
	}
	</style>
	</head>

	<body>
	</body>

	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js" charset="utf-8"></script>
	<script>

	var margin = {top: 20, right: 20, bottom: 20, left: 60};
	var width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;

	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 + ")");

	// ordinal scale and rangeRoundBands are uniquely important for bar graphs
	var x = d3.scale.ordinal()
	.rangeRoundBands([0, width], 0.33);
	var y = d3.scale.linear()
	.range([height, 0]);

	var xAxis = d3.svg.axis()
	.scale(x)
	.tickSize(-height)
	.tickPadding(8)
	.orient("bottom");
	var yAxis = d3.svg.axis()
	.scale(y)
	.tickSize(-width)
	.tickPadding(8)
	.orient("left");

	d3.tsv("jobs.tsv", ready);

	function ready(err, data) {
	if (err) throw "error loading data";

	data.forEach(function(d) {
	d.jobs_change = +d.jobs_change;
	d.private_job_change = +d.private_job_change;
	d.unemployment_rate = +d.unemployment_rate;
	var s = d.month_year.split("-");
	d.date = new Date(s[0], (+s[1]-1) );
	});

	y.domain(d3.extent(data, function (d) { return d.jobs_change; }));
	data.sort(function(a,b) { return a.date - b.date; });
	x.domain(data.map( function (d) { return d.month_year; }));

	svg.append("g")
	.attr("class", "x axis")
	.attr("transform", "translate(0," + (height) + ")")
	.call(xAxis)
	// selectAll text to update axis text
	.selectAll("text")
	.text(function (d) {
	var dateSplit = d.split("-");
	if ( dateSplit[1] === "01" ) {
	return dateSplit[0];
	};
	});
	svg.append("g")
	.attr("class", "y axis")
	.call(yAxis)
	.selectAll("text")
	.text( function (d) {
	var changeLabel = d;
	return d = (changeLabel > 0) ? "+" + d + "k" : d + "k";
	});

	var rect = svg.append("g").attr("class", "g-rect-group").selectAll("rect")
	.data(data)
	.enter()
	.append("rect")
	// ternary to add positive or negative class to bars
	.attr("class", function (d) {
	return (d.jobs_change > 0) ? 'bar barPositive' : 'bar barNegative';
	})
	// .rangeBand() function with rangeRoundBand to properly space bars
	.attr("width", x.rangeBand())
	.attr("x", function(d) { return x(d.month_year); })
	// fancy absolute values to handle positive and negative values
	.attr("y", function(d) { return y(Math.max(d.jobs_change, 0)); })
	.attr("height", function(d) { return Math.abs(y(d.jobs_change) - y(0)); });

	};

	</script>
month_year	jobs_change	private_job_change	unemployment_rate
2008-11	-803	-797	6.8
2008-12	-661	-658	7.3
2009-01	-818	-839	7.8
2009-02	-724	-725	8.3
2009-03	-799	-787	8.7
2009-04	-692	-802	8.9
2009-05	-361	-312	9.4
2009-06	-482	-426	9.5
2009-07	-339	-296	9.5
2009-08	-231	-219	9.6
2009-09	-199	-184	9.8
2009-10	-202	-232	10
2009-11	-42	-42	9.9
2009-12	-171	-120	9.9
2010-01	-40	-40	9.7
2010-02	-35	-27	9.8
2010-03	189	141	9.8
2010-04	239	193	9.9
2010-05	516	84	9.6
2010-06	-167	92	9.4
2010-07	-58	92	9.5
2010-08	-51	128	9.6
2010-09	-27	115	9.5
2010-10	220	196	9.5
2010-11	121	134	9.8
2010-12	120	140	9.4
2011-01	110	119	9.1
2011-02	220	257	9
2011-03	246	261	8.9
2011-04	251	264	9
2011-05	54	108	9
2011-06	84	102	9.1
2011-07	96	175	9.1
2011-08	85	52	9.1
2011-09	202	216	9
2011-10	112	139	8.9
2011-11	157	178	8.7
2011-12	223	234	8.5
2012-01	275	277	8.3
2012-02	259	254	8.3
2012-03	143	147	8.2
2012-04	68	85	8.1
2012-05	87	116	8.2
2012-06	45	63	8.2
2012-07	181	163	8.3
2012-08	142	97	8.1
2012-09	114	104	7.8