datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,03 0:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 2:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 3:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 4:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 5:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,03 6:30:00,31 ,       0,25.81238,4.980659,5.326072
sgpcmbeC1.c1,2001,03 7:30:00,31 ,7.671836,36.10502,18.82743,8.309263
sgpcmbeC1.c1,2001,03 8:30:00,31 ,1.445873,80.37401,25.44274,17.48389
sgpcmbeC1.c1,2001,03 9:30:00,31 ,1.473181,74.46397,28.15304,22.02701
sgpcmbeC1.c1,2001,0310:30:00,31 ,1.186771,139.1259,35.04842,31.63641
sgpcmbeC1.c1,2001,0311:30:00,31 ,0.767743,93.97971,30.69216,25.35972
sgpcmbeC1.c1,2001,0312:30:00,31 ,0.655691,129.8365,43.33688,34.75294
sgpcmbeC1.c1,2001,0313:30:00,31 ,0.976504, 143.813,41.51451,37.98192
sgpcmbeC1.c1,2001,0314:30:00,31 , 1.57901, 80.1727,31.19061,24.25676
sgpcmbeC1.c1,2001,0315:30:00,31 ,0.808337,65.17686,27.80782,18.96626
sgpcmbeC1.c1,2001,0316:30:00,31 ,1.717081,69.08223,24.21206,16.35485
sgpcmbeC1.c1,2001,0317:30:00,31 ,4.327339,51.99608,19.31901,11.21262
sgpcmbeC1.c1,2001,0318:30:00,31 ,1.909191,23.10093, 10.8006,6.058671
sgpcmbeC1.c1,2001,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0320:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0321:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0322:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0323:30:00,27 ,       0,       0,       0,       0