D3 Examples - Mobile Cellular Subscriptions in United States

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<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width">
    <script src="https://d3js.org/d3.v4.min.js"></script>
    <title>Mobile Cellular Subscriptions in United States</title>
    <style>
      body {
        margin: 0px;
      }
      .domain {
        display: none;
      }
      .tick line {
        stroke: #C0C0BB;
      }
      .tick text {
        fill: #8E8883;
        font-size: 12pt;
        font-family: sans-serif;
      }
      .axis-label {
        fill: #635F5D;
        font-size: 20pt;
        font-family: sans-serif;
      }
    </style>
  </head>
  <body>
    <svg width="960" height="500"></svg>
    <script>
      const xValue = d => d['Year'];
      const xLabel = 'Year';
      const yValue = d => d['Mobile cellular subscriptions'];
      const yLabel = 'Subscription per 100 people';
      const margin = { left: 120, right: 60, top: 20, bottom: 120 };
​
      const svg = d3.select('svg');
      const width = svg.attr('width');
      const height = svg.attr('height');
      const innerWidth = width - margin.left - margin.right;
      const innerHeight = height - margin.top - margin.bottom;
​
      const g = svg.append('g')
          .attr('transform', `translate(${margin.left},${margin.top})`);
      const xAxisG = g.append('g')
          .attr('transform', `translate(0, ${innerHeight})`);
      const yAxisG = g.append('g');
​
      xAxisG.append('text')
          .attr('class', 'axis-label')
          .attr('x', innerWidth / 2)
          .attr('y', 80)
          .text(xLabel);
​
      yAxisG.append('text')
          .attr('class', 'axis-label')
          .attr('x', -innerHeight / 2)
          .attr('y', -60)
          .attr('transform', `rotate(-90)`)
          .style('text-anchor', 'middle')
          .text(yLabel);
​
      const xScale = d3.scaleLinear();
      const yScale = d3.scaleLinear();
​
      const xAxis = d3.axisBottom()
        .scale(xScale)
        .tickPadding(15)
        .ticks(5)
        .tickSize(-innerHeight)
        .tickFormat(d3.format("d")); 
      const yTicks = 5;
      const yAxis = d3.axisLeft()
        .scale(yScale)
        .ticks(yTicks)
        .tickPadding(15)
        .tickSize(-innerWidth)
        .tickFormat(d3.format("d"));
​
      const line = d3.line()
        .x(d => xScale(xValue(d)))
        .y(d => yScale(yValue(d)))
        .curve(d3.curveBasis);
​
      const row = d => {
                if(d['Entity'] === "United States"){
            d['Year'] = +d['Year'];
            d['Mobile cellular subscriptions'] = +d['Mobile cellular subscriptions'];
                return d;
        }
      };
​
      d3.csv('mobile-cellular-subscriptions-by-country.csv', row, data => {
        xScale
          .domain(d3.extent(data, xValue))
          .range([0, innerWidth])
          .nice();
​
        yScale
          .domain(d3.extent(data, yValue))
          .range([innerHeight, 0])
          .nice(yTicks);
​
        g.append('path')
            .attr('fill', 'none')
            .attr('stroke', 'red')
            .attr('stroke-width', 4)
            .attr('d', line(data));
​
        xAxisG.call(xAxis);
        yAxisG.call(yAxis);
      });
    </script>
  </body>
</html>
​
    