Javascript 弦图中的矩阵

我是js新手，我想为数据集绘制一个弦图，如下所示：

有人能帮忙吗？非常感谢

From To A B A C A C B C B A C A d3.csv('data/email1.csv', function (error, data) { var mpr = chordMpr(data);

    mpr.addValuesToMap('From')
      .addValuesToMap('To')
      .setFilter(function (row, a, b) {
        return (row.From === a.name && row.To === b.name) ||
               (row.From === b.name && row.To === a.name);
      })
      .setAccessor(function (recs, a, b) {
        if (!recs[0]) return 0;
        return recs.length;
      });
     drawChords(mpr.getMatrix(), mpr.getMap());
  });