datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,04 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,04 1:30:00,30 ,       0,0.082892,0.002964,0.015136
sgpcmbeC1.c1,1998,04 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,04 3:30:00,30 ,       0, 0.11758,0.003919,0.021467
sgpcmbeC1.c1,1998,04 4:30:00,30 ,       0,0.010228,0.000341,0.001867
sgpcmbeC1.c1,1998,04 5:30:00,30 ,       0,1.154521,0.118047,0.250752
sgpcmbeC1.c1,1998,04 6:30:00,30 ,1.139762,26.22591,12.41907,7.833322
sgpcmbeC1.c1,1998,04 7:30:00,30 ,4.214533,74.93211,45.18359,22.47524
sgpcmbeC1.c1,1998,04 8:30:00,30 ,9.934343,115.3414,77.12075,33.73352
sgpcmbeC1.c1,1998,04 9:30:00,30 ,13.86378,144.6892,99.41768,47.48545
sgpcmbeC1.c1,1998,0410:30:00,30 ,7.446098,166.5366,121.1093,52.37584
sgpcmbeC1.c1,1998,0411:30:00,30 ,11.42425,178.6395,130.9036,59.95808
sgpcmbeC1.c1,1998,0412:30:00,30 ,10.43385,183.1592,131.5585,61.73137
sgpcmbeC1.c1,1998,0413:30:00,30 ,11.00876, 181.116,133.3851,60.03979
sgpcmbeC1.c1,1998,0414:30:00,30 ,19.69484,168.7442,118.6608,54.15757
sgpcmbeC1.c1,1998,0415:30:00,30 ,24.95991,146.6577,106.1608,45.81892
sgpcmbeC1.c1,1998,0416:30:00,30 ,12.79196,113.7071,80.58955, 36.5161
sgpcmbeC1.c1,1998,0417:30:00,30 ,2.174954,74.16332,48.76672,23.87672
sgpcmbeC1.c1,1998,0418:30:00,30 ,0.103606,23.34774,12.69725,7.602493
sgpcmbeC1.c1,1998,0419:30:00,30 ,       0,0.478727,0.035784,0.095509
sgpcmbeC1.c1,1998,0420:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,0421:30:00,30 ,       0,0.400829,0.013361,0.073181
sgpcmbeC1.c1,1998,0422:30:00,30 ,       0,0.004416,0.000147,0.000806
sgpcmbeC1.c1,1998,0423:30:00,30 ,       0,0.000077,2.566E-6,0.000014