datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,11 0:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 2:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 3:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 5:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 6:30:00,30 ,       0,0.115191,0.004126,0.020991
sgpcmbeC1.c1,2007,11 7:30:00,30 ,0.005339,36.88477,16.16825,11.66568
sgpcmbeC1.c1,2007,11 8:30:00,28 ,0.014105,53.16064, 35.9861,17.24531
sgpcmbeC1.c1,2007,11 9:30:00,28 , 0.06594,130.6856,44.98148,29.67575
sgpcmbeC1.c1,2007,1110:30:00,29 ,0.162696,127.6368,36.18436,24.18048
sgpcmbeC1.c1,2007,1111:30:00,29 ,0.238603, 153.205,43.56915,46.48575
sgpcmbeC1.c1,2007,1112:30:00,29 ,0.263983,157.0921,35.91345,49.03182
sgpcmbeC1.c1,2007,1113:30:00,29 ,0.114419,156.8214,38.37626,38.71192
sgpcmbeC1.c1,2007,1114:30:00,29 ,0.032194,88.49436,36.46441,19.61012
sgpcmbeC1.c1,2007,1115:30:00,29 ,       0,59.48134,40.32872,15.71602
sgpcmbeC1.c1,2007,1116:30:00,30 ,       0,45.87449,28.19475,15.56293
sgpcmbeC1.c1,2007,1117:30:00,30 ,       0, 10.4735,2.746807,2.691042
sgpcmbeC1.c1,2007,1118:30:00,29 ,       0,0.448193,0.015455,0.083227
sgpcmbeC1.c1,2007,1119:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1121:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1122:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1123:30:00,27 ,       0,       0,       0,       0