.then(res => res.json())

  .then(data => {

    const ds = new DataSet();

    const dv1 = ds.createView().source(data);

    dv1.transform({

      type: 'map',

      callback: function callback(row) {

        if (typeof (row.Deaths) === 'string') {

          row.Deaths = row.Deaths.replace(',', '');

        }

        row.Deaths = parseInt(row.Deaths);

        row.death = row.Deaths;

        row.year = row.Year;

        return row;

      }

    });

    const dv2 = ds.createView().source(dv1.rows);

    dv2.transform({

      type: 'regression',

      method: 'polynomial',

      fields: [ 'year', 'death' ],

      bandwidth: 0.1,

      as: [ 'year', 'death' ]

    });

    const chart = new G2.Chart({

      container: 'container',

      forceFit: true,

      height: 500,

      padding: [ 20, 20, 50, 50 ]

    });

    chart.tooltip({

      crosshairs: false

    });

    const view1 = chart.view();