text: let seed = 1.3;
  
  const random = () => {
      seed *= 7.3;
      seed -= Math.floor(seed);
      return seed;
  }
  
  export default function createData(count=9) {
      let record = {
              id: 0,
              g1: 700 * random() + 100,
              g2: 700 * random() + 100,
              g3: 700 * random() + 100,
              g4: 700 * random() + 100,
              g5: 700 * random() + 100,
              g6: 700 * random() + 100,
              name: 'A'
          };
      const data = [record];
  
      for (let i = 1; i < count; i++) {
          data.push(record = {
              id: i,
              g1: Math.abs(record.g1 + 300 * random() - 140),
              g2: Math.abs(record.g2 + 300 * random() - 140),
              g3: Math.abs(record.g3 + 300 * random() - 140),
              g4: Math.abs(record.g4 + 300 * random() - 140),
              g5: Math.abs(record.g5 + 300 * random() - 140),
              g6: Math.abs(record.g6 + 300 * random() - 140),
              name: String.fromCharCode(65 + i)
          });
      }
  
      return data;
  }