D3 Examples - New York Temp Data Chart

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    svg {
      width: 100%;
      height: 100%;
      background-color: gold;
    }
  </style>
</head>
​
<body>
  <svg></svg>
  <script>
    const city = 'New York'
    const width = 800
    const height = 300
    const margin = { top: 20, bottom: 20, left: 20, right: 20 }
​
    // dataset of city temperatures across time
    d3.tsv('data.tsv', (err, data) => {
      // clean the data
      data.forEach(d => {
        d.date = d3.timeParse('%Y%m%d')(d.date)
        d.date = new Date(d.date) // x
        d[city] = ++d[city] // y
        console.log(d)
      })
​
      // scales
      const xExtent = d3.extent(data, d => d.date)
      const xScale = d3
        .scaleTime()
        .domain(xExtent)
        .range([margin.left, width - margin.right])
​
      const yMax = d3.max(data, d => d[city])
      const yScale = d3
      .scaleLinear()
      .domain([0, yMax])
      .range([height - margin.bottom, margin.top])
​
      const heightScale = d3
        .scaleLinear()
        .domain([0, yMax])
        .range([0, height - margin.top - margin.bottom])
​
      // create the rectangles
      const svg = d3.select('svg')
​
      const rect = svg
        .selectAll('rect')
        .data(data)
        .enter()
        .append('rect')
        .attr('width', 2)
        .attr('height', function(d) {
          return heightScale(d[city])
        })
        .attr('x', function(d) {
          return xScale(d.date)
        })
        .attr('y', function(d) {
          return yScale(d[city])
        })
        .attr('fill', 'blue')
        .attr('stroke', 'white')
​
        const xAxis = d3
          .axisBottom()
          .scale(xScale)
          .tickFormat(d3.timeFormat('%b %Y'))
        const yAxis = d3.axisLeft().scale(yScale)
​
        svg
          .append('g')
          .attr('transform', 'translate(' + [0, height - margin.bottom] + ')')
          .call(xAxis)
        svg
          .append('g')
          .attr('transform', 'translate(' + [margin.left, 0] + ')')
          .call(yAxis)
})
</script>
</body>
​
    