datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,01 0:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 1:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 2:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 3:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 4:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 6:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,01 7:30:00,29 , 0.10326,18.69586,3.854941,4.330524
sgpcmbeC1.c1,2000,01 8:30:00,29 ,12.93231,83.26431,43.38093, 18.7701
sgpcmbeC1.c1,2000,01 9:30:00,29 ,28.20188,  177.09,99.39617, 46.7918
sgpcmbeC1.c1,2000,0110:30:00,29 ,45.04565, 347.917,146.3386,77.35071
sgpcmbeC1.c1,2000,0111:30:00,29 ,57.18414,413.2134,174.5799,92.49184
sgpcmbeC1.c1,2000,0112:30:00,29 ,59.91105, 414.763,191.5631,97.96577
sgpcmbeC1.c1,2000,0113:30:00,29 ,59.94686,420.3794,171.0291,98.62655
sgpcmbeC1.c1,2000,0114:30:00,29 ,33.90807,273.8777,154.5712,73.76453
sgpcmbeC1.c1,2000,0115:30:00,29 ,29.49135,209.7302,116.3151,56.75424
sgpcmbeC1.c1,2000,0116:30:00,29 ,19.25815,134.1124,67.93976,33.81005
sgpcmbeC1.c1,2000,0117:30:00,29 ,1.724775,30.81546,14.47672,7.885028
sgpcmbeC1.c1,2000,0118:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0119:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0121:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0122:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0123:30:00,22 ,       0,       0,       0,       0