D3 Examples - SF Eviction Multiline Plot Per 1000 Households

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<!DOCTYPE html>
<head>
    <meta charset="utf-8">
    <title>SF Eviction Notices 1997-2015</title>
    <script type="text/javascript" src="https://d3js.org/d3.v3.js"></script>
<style type="text/css">
body {
    font-family:  "Palatino Linotype", "Book Antiqua", Palatino, serif;
    background-color: white;
    padding: 50px;
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h1  {
    margin-left: 50px;
    }
p   {
    max-width: 1000px;
    margin-left: 50px;
    }
figure { 
    display: block;
    margin-top: 1em;
    margin-bottom: 1em;
    margin-left: 40px;
    margin-right: 40px;
    }
figcaption {
    padding: 5px;
    font-family: ;
    font-size: 0.8em;
    font-weight: 700;
    border: none;
    background: transparent;
    word-wrap:normal;
    text-align: center;
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em {
    color: black; 
    font-weight: bold;
    font-style: italic;
    }
em1 {
    color: darkred; 
    font-weight: bold;
    font-style: italic;
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svg {
    background-color: white;
    }
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
.x.axis path {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
.line {
  fill: none;
  stroke: steelblue;
  stroke-width: 1.5px;
}
.highlight { stroke: #fc0; }
</style>
</head>
  <body>
    <figure>
        <img src = "https://media1.fdncms.com/sfexaminer/imager/evictions/u/original/2627321/evictions_mural.jpg" width = "1000" height = "547" alt=""/>       
        <figcaption style="text-align:left">PHOTO CREDIT: MIKE KOOZMIN/THE S.F. EXAMINER, November 15, 2013 </figcaption>
    </figure>
    
    <h1> SF Eviction Notices from 1997 - 2015,<em1> a first look</em1></h1>
    <p>Mouse over the lines or the neighborhood names to see in what <em>years</em> and in what San Francisco <em>neighborhoods</em> the number of eviction notices has been the greatest. Were the high eviction rates (<em1>or at least</em1> eviction notice rates) in the Mission simply the result more total households in the Mission?</p>
    
    <p style="font-size:80%">Eviction notice data from <a href="https://data.sfgov.org/Housing-and-Buildings/Eviction-Notices/5cei-gny5">data.sfgov.org</a> and households per neighborhood data from US Census ACS 5-year Average (2008-2013)</p>
​
<body>
​
<script type="text/javascript">
var margin = {top: 20, right: 250, bottom: 50, left: 70},
    width = 1200 - margin.left - margin.right,
    height = 700 - margin.top - margin.bottom;
var parseDate = d3.time.format("%Y").parse;
var x = d3.time.scale()
    .range([0, width]);
var y = d3.scale.linear()
    .range([height-5, 0]);
var curve = d3.scale.ordinal();
var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");
var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");
var line = d3.svg.line()
    .defined(function(d) { return !isNaN(d.TotalEviction); })
    .interpolate("monotone")
    .x(function(d) { return x(d.Year); })
    .y(function(d) { return y(d.TotalEviction); });
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("SF_EvictionNoticesPer1000Household_Total_Wide.csv", function(error, data) {
  curve.domain(d3.keys(data[0]).filter(function(key) { return key !== "Year"; }));
  data.forEach(function(d) {
    d.Year = parseDate(d.Year);
  });
  var sources = curve.domain().map(function(name) {
    return {
      name: name,
      values: data.map(function(d) {
        return {Year: d.Year, TotalEviction: +d[name]};
      })
    };
  });
  x.domain(d3.extent(data, function(d) { return d.Year;}));
  y.domain([
    d3.min(sources, function(c) { return d3.min(c.values, function(v) { return v.TotalEviction; }); }),
    d3.max(sources, function(c) { return d3.max(c.values, function(v) { return v.TotalEviction; }); })
  ]);
  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
    .append("text")
      .attr("y", margin.bottom/1) //smaller divider moves down
      .attr("x",width/2)
      .text("Year")
      .attr("font-family","serif")
      .attr("font-size","16px");
  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y",-margin.top*3.3) //bigger mulitplier moves to the left
      .attr("x",-height/2)  //smaller divider moves up
      .attr("dy", ".71em")
      .style("text-anchor", "middle")
      .text("Total Eviction Notices per 1000 Households")
      .attr("font-family","serif")
      .attr("font-size","16px");
      
  var source = svg.selectAll(".source")
      .data(sources)
    .enter().append("g")
      .attr("class", "source");
  
   source.append("path")
      .attr("class", "line")
      .attr("d", function(d) { return line(d.values); })
      .style("stroke", function(d) {   //initial path-line color
        if (d.name == "Mission") {
          this.parentNode.parentNode.appendChild(this.parentNode)
          return "darkred"
        } else {
          return "lightgrey"
        }
      })
      .style("stroke-width", function(d) {   //initial path-line width
        if (d.name == "Mission") {
          return "4px"
        } else {
          return "1.5px"
        }
      }) 
      .on("mouseover", function(d){
        d3.select(this)
          .style("stroke", "#6b6ecf")  //line color with line moveover
          .style("stroke-width","3px");
          //.style("stroke",function(d) {return color(d.name);});
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        d3.select('#text-' + d.name)
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          .style("font-style","bold")
          .style("font-size", "18");  
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      })
      .on("mouseout", function(d) {
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            .transition()
            .duration(200)
            .style("stroke", "lightgrey")  //line color when line mouseout
            .style("stroke-width","1.5px");
          d3.select('#text-' + d.name)
            .transition()
            .duration(200)
            .style("stroke", "#646464")  //text color, size when line mouseout
            .style("font-style","normal")
            .style("font-size", "14");
          })
    .attr("id", function(d, i) { return "path-" + d.name; });
    
  
  source.append("text")
      .datum(function(d) { return {name: d.name, value: d.values[d.values.length - 1]}; })
      .attr("transform", function(d, i) {return "translate("+x(d.value.Year * .99)+","+ y((i)*1)+")";})
      .attr("x", 40)
      .attr("dy", ".35em")
      .style("stroke", function(d) {   //initial text color
        if (d.name == "Mission") {
          return "darkred"
        } else {
          return "#646464"
        };
      })
      .style("font-style", function(d) {   //initial text color
        if (d.name == "Mission") {
          return "bold"
        } else {
          return "normal"
        };
      })
      .style("font-size", function(d) {   //initial text color
        if (d.name == "Mission") {
          return "18px"
        } else {
          return "14px"
        };
      })
      .on("mouseover", function(d){
    d3.select('#path-' + d.name)
       .style("stroke", "#6b6ecf")   //line-path color with text mouseover
       .style("stroke-width","3px");
       //.style("stroke",function(d) {return color(d.name);});
       this.parentNode.parentNode.appendChild(this.parentNode);
    d3.select(this)
        .style("stroke", "#6b6ecf") //text color,style, size with text mouseover
        .style("font-style", "bold")
        .style("font-size","18")
        //.style("stroke",function(d) {return color(d.name);});
      })
      .on("mouseout", function(d) {
    d3.select('#path-' + d.name)
      .transition()
      .duration(200)
      .style("stroke", "lightgrey")   //line-path color with text mouseout
      .style("stroke-width","1.5px");
    d3.select(this)
      .transition()
      .duration(200)
      .style("stroke", "#646464")  //text color,style,size with text mouseout
      .style("font-style","normal")
      .style("font-size","14");
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      .attr("font-family","serif")
      .attr("font-size","14px")
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});
</script>
    