datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,06 0:30:00,30 ,       0,0.184155,0.006139,0.033622
sgpcmbeC1.c1,1997,06 1:30:00,30 ,       0, 1.11961, 0.03732,0.204412
sgpcmbeC1.c1,1997,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,06 4:30:00,30 ,       0,0.050272,0.001676,0.009178
sgpcmbeC1.c1,1997,06 5:30:00,30 ,0.693786,36.09578, 16.1878,7.037783
sgpcmbeC1.c1,1997,06 6:30:00,30 ,16.07194,122.5758,68.75123,28.40329
sgpcmbeC1.c1,1997,06 7:30:00,30 ,44.33615,202.5386,118.8388,46.16185
sgpcmbeC1.c1,1997,06 8:30:00,30 ,69.16325,344.0518,150.1592,65.15245
sgpcmbeC1.c1,1997,06 9:30:00,30 ,73.13587, 360.394,196.7715,85.03106
sgpcmbeC1.c1,1997,0610:30:00,30 ,40.16634,430.6479,245.5753,111.8897
sgpcmbeC1.c1,1997,0611:30:00,30 ,95.01804,512.6747,260.5945,113.9893
sgpcmbeC1.c1,1997,0612:30:00,30 , 107.092,513.9432,282.7939, 132.782
sgpcmbeC1.c1,1997,0613:30:00,30 ,96.44656, 494.267,297.7923,124.4585
sgpcmbeC1.c1,1997,0614:30:00,30 ,102.9401, 429.569,265.6726,112.2942
sgpcmbeC1.c1,1997,0615:30:00,30 ,99.10799,471.7728,236.2098,94.07148
sgpcmbeC1.c1,1997,0616:30:00,30 ,49.49889,315.8877,187.9305,71.63338
sgpcmbeC1.c1,1997,0617:30:00,30 ,7.161621,190.0996, 124.245,45.38093
sgpcmbeC1.c1,1997,0618:30:00,30 ,8.001066,117.6186,64.18407,22.00013
sgpcmbeC1.c1,1997,0619:30:00,30 , 0.52928,32.68916,17.32974,6.994602
sgpcmbeC1.c1,1997,0620:30:00,30 ,       0,0.057468,0.003641,0.013877
sgpcmbeC1.c1,1997,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0623:30:00,30 ,       0,0.657832,0.028124,0.123675