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 ,       0,8.230694,0.965031,1.630469
sgpcmbeC1.c1,2001,03 7:30:00,31 ,1.899725, 40.7803, 16.2301,10.24469
sgpcmbeC1.c1,2001,03 8:30:00,31 ,10.05684,  82.842,  45.113,22.83393
sgpcmbeC1.c1,2001,03 9:30:00,31 ,19.35249,117.6966,68.18188,33.60883
sgpcmbeC1.c1,2001,0310:30:00,31 , 26.7245,146.4565,96.00684,40.53106
sgpcmbeC1.c1,2001,0311:30:00,31 ,20.30219,174.2171,115.7933,48.65577
sgpcmbeC1.c1,2001,0312:30:00,31 ,16.58537,180.2411,117.5935,48.90929
sgpcmbeC1.c1,2001,0313:30:00,31 ,9.556498,175.6428, 110.224,53.18627
sgpcmbeC1.c1,2001,0314:30:00,31 ,7.179287,160.6183,99.93008,45.26803
sgpcmbeC1.c1,2001,0315:30:00,31 ,5.266909, 136.892,82.01458, 39.8428
sgpcmbeC1.c1,2001,0316:30:00,31 ,6.677333,102.8843,56.60735,28.42741
sgpcmbeC1.c1,2001,0317:30:00,31 ,1.689915,59.28164,25.43136,15.57084
sgpcmbeC1.c1,2001,0318:30:00,31 ,       0,15.63974,3.250273,3.463348
sgpcmbeC1.c1,2001,0319:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0320:30:00,29 ,       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