datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,04 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,04 1:30:00,30 ,       0,  0.0228,0.001218,0.004786
sgpcmbeC1.c1,2000,04 2:30:00,30 ,       0,0.006264,0.000209,0.001144
sgpcmbeC1.c1,2000,04 3:30:00,30 ,       0,0.018853,0.000932,0.003771
sgpcmbeC1.c1,2000,04 4:30:00,30 ,       0,0.041708,0.002181,0.007942
sgpcmbeC1.c1,2000,04 5:30:00,30 ,       0, 2.54174,0.392318,0.670475
sgpcmbeC1.c1,2000,04 6:30:00,24 ,0.826638,51.24786,27.40695,14.35003
sgpcmbeC1.c1,2000,04 7:30:00,24 ,8.429338,162.5829, 86.1462,35.85377
sgpcmbeC1.c1,2000,04 8:30:00,24 , 52.3595,239.9825,138.3418,57.82385
sgpcmbeC1.c1,2000,04 9:30:00,24 ,47.26246,362.7315,165.5276,95.45091
sgpcmbeC1.c1,2000,0410:30:00,24 ,68.23596,379.8308,173.5786, 81.7556
sgpcmbeC1.c1,2000,0411:30:00,24 ,71.86674,448.5545,200.9156,97.41022
sgpcmbeC1.c1,2000,0412:30:00,24 ,73.31509,531.0717,227.9159,145.0564
sgpcmbeC1.c1,2000,0413:30:00,24 ,73.77209,508.7286,232.6133,133.2682
sgpcmbeC1.c1,2000,0414:30:00,23 ,72.09563,547.3652,229.2128, 134.456
sgpcmbeC1.c1,2000,0415:30:00,24 ,       0,310.4414,168.3473,86.40801
sgpcmbeC1.c1,2000,0416:30:00,24 ,       0,247.2937,120.6953,59.48626
sgpcmbeC1.c1,2000,0417:30:00,24 ,       0, 151.724,84.43972,40.91083
sgpcmbeC1.c1,2000,0418:30:00,25 ,       0,50.84356,29.96208,14.78913
sgpcmbeC1.c1,2000,0419:30:00,30 ,       0,1.830654, 0.36648,0.567751
sgpcmbeC1.c1,2000,0420:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0421:30:00,30 ,       0,0.092026,0.003635,0.016981
sgpcmbeC1.c1,2000,0422:30:00,30 ,       0,0.017091,0.000791,0.003308
sgpcmbeC1.c1,2000,0423:30:00,30 ,       0,0.041888,0.002602,0.009932