datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,06 0:30:00,30 ,       0,0.189728,0.006324,0.034639
sgpcmbeC1.c1,1997,06 1:30:00,30 ,       0,0.339113,0.011304,0.061913
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,       0,       0
sgpcmbeC1.c1,1997,06 5:30:00,30 ,0.005857,19.30879,6.452886,6.093671
sgpcmbeC1.c1,1997,06 6:30:00,30 ,0.004445,55.97274,27.81267,19.84103
sgpcmbeC1.c1,1997,06 7:30:00,30 ,0.126049, 108.367,42.46089,30.64167
sgpcmbeC1.c1,1997,06 8:30:00,30 ,0.096117,177.7483,62.79168,54.23289
sgpcmbeC1.c1,1997,06 9:30:00,30 ,0.298995,249.4707,81.19802,68.81296
sgpcmbeC1.c1,1997,0610:30:00,30 ,0.078508,341.2587,127.2656,115.5269
sgpcmbeC1.c1,1997,0611:30:00,30 ,0.547856,339.2082,123.8406,111.9842
sgpcmbeC1.c1,1997,0612:30:00,30 ,0.575956, 348.916,132.1077,119.3996
sgpcmbeC1.c1,1997,0613:30:00,30 ,0.630325, 324.068,150.3605,115.2105
sgpcmbeC1.c1,1997,0614:30:00,30 ,1.447291,328.6935, 151.942,102.9104
sgpcmbeC1.c1,1997,0615:30:00,30 ,1.062147,282.5967,133.3818,88.96091
sgpcmbeC1.c1,1997,0616:30:00,30 ,0.251046, 229.474,106.7449,61.73602
sgpcmbeC1.c1,1997,0617:30:00,30 ,0.032175,120.3431,60.76795,38.56699
sgpcmbeC1.c1,1997,0618:30:00,30 ,       0,77.33434,31.43643,21.41393
sgpcmbeC1.c1,1997,0619:30:00,30 ,       0,21.51832,8.027614,6.500812
sgpcmbeC1.c1,1997,0620:30:00,30 ,       0,0.010778,0.000545,0.002183
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 ,       0,0.104437,0.006359,0.024317