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<html lang="en">
<head>
<meta charset="utf-8">
<title>Week 7</title>
<script type="text/javascript" src="d3.js"></script>
<script type="text/javascript" src="d3-tip.js"></script>
<style type="text/css">
.axis path,
.axis line {
fill: none;
stroke: black;
shape-rendering: crispEdges;
}
.axis text {
font-family: sans-serif;
font-size: 11px;
}
svg {
padding-left: 100px;
padding-bottom: 150px;
padding-top: 20px;
}
.bar {
fill: black;
}
.bar:hover {
fill: grey ;
}
.d3-tip {
line-height: 1;
font-weight: bold;
padding: 12px;
background: rgba(0, 0, 0, 0.8);
color: #fff;
border-radius: 2px;
}
/* Creates a small triangle extender for the tooltip */
.d3-tip:after {
box-sizing: border-box;
display: inline;
font-size: 10px;
width: 100%;
line-height: 1;
color: rgba(0, 0, 0, 0.8);
content: "\25BC";
position: absolute;
text-align: center;
}
/* Style northward tooltips differently */
.d3-tip.n:after {
margin: -1px 0 0 0;
top: 100%;
left: 0;
}
</style>
</head>
<body>
<!--Call the scatterplot -->
<script type="text/javascript">
d3.csv("crime_occurences.csv", function(data) {
dataset_b = data;
console.log(d3.max(dataset_b, function(d) { return +d.count;}));
//console.log(d3.max(dataset, function(d) { return +d.count_veh_2003; }));
//Width and height
var w_b = 1000;
var h_b = 450;
var padding_b = 30;
//var formatPercent = d3.format(".0%");
//Create scaled x
var xScale_b = d3.scaleBand()
.domain(dataset_b.map(function(d) { return d.Category; })) //Assign Cateory value
.rangeRound([0, w_b]) //Create equally big widths for the bars within the svg total width
.paddingInner(0.05);//Create padding between consecutive bars in percentage
//Create scaled y
var yScale_b = d3.scaleLinear()
.domain([0, d3.max(dataset_b, function(d) { return +d.count;})])
.range([h_b, 0]); // Invert yaxis upside-down
//Define X axis
var xAxis_b = d3.axisBottom()
.scale(xScale_b);
//Define Y axis
var yAxis_b = d3.axisLeft()
.scale(yScale_b);
//Create tip
var tip = d3.tip()
.attr('class', 'd3-tip')
.offset([-10, 0])
.html(function(d) {
return "<strong>Frequency:</strong> <span style='color:red'>" + d.count + "</span>";
})
//Create SVG element
var svg_b = d3.select("body")
.append("svg")
.attr("width", w_b)
.attr("height", h_b);
// Call the tip
svg_b.call(tip);
//Add a rectangle to each element
svg_b.selectAll(".bar")
.data(dataset_b)
.enter()
.append("rect")
.attr("class", "bar")
.attr("x", function(d) { return xScale_b(d.Category); })
.attr("y", function(d) { return yScale_b(+d.count); }) //invert yaxis upside-down
.attr("width", xScale_b.bandwidth())
.attr("height", function(d,i) { return h_b - yScale_b(+d.count);}) //invert yaxis upside-down
.on('mouseover', tip.show)
.on('mouseout', tip.hide);
//Add X axis
svg_b.append("g")
.attr("class", "x axisb")
.attr("transform", "translate(0," + h_b + ")")
.call(xAxis_b)
.selectAll("text")
.attr("y", 0)
.attr("x", 9)
.attr("dy", ".35em")
.attr("transform", "rotate(90)")
.style("text-anchor", "start");
//Add Y axis
svg_b.append("g")
.attr("class", "y axisb")
.attr("transform", "translate(0,0)") // + 5 + "
.call(yAxis_b);
// Text label for the Y axis
svg_b.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 0 - padding_b*3)
.attr("x",0 - (h_b / 2))
.attr("dy", "1em")
.attr("font-family", "sans-serif")
.style("text-anchor", "middle")
.text("FREQUENCY");
// Text for the title of the plot
svg_b.append("text")
.attr("class", "text title")
.attr("transform","translate(" + w_b/2 + ",0)")
.style("text-anchor","middle")
.attr("font-family", "sans-serif")
.attr("font-size", "20px")
.text("Frequency of San Francisco categories of crimes (2003-2016)");
});
</script>
</body>
</html>