code: function init(){
      dataX = [], dataY = [], dataZ = [], dataA = [], dataB = [], dataG = [], dataC = [];
      for( let i = 0; i < NN; i++) {
          dataX.push( [i, 0] );
          dataY.push( [i, 0] );
          dataZ.push( [i, 0] );
          dataA.push( [i, 0] );
          dataB.push( [i, 0] );
          dataG.push( [i, 0] );
      }
  }
docs: データの初期化