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 ,0.563727,12.43498,5.545354,2.993128
sgpcmbeC1.c1,2000,01 8:30:00,29 ,5.184535,  64.507,37.05617,17.24357
sgpcmbeC1.c1,2000,01 9:30:00,29 ,3.681045,75.72508,44.81689,16.27444
sgpcmbeC1.c1,2000,0110:30:00,29 ,9.913468,106.3191,45.49089,27.33681
sgpcmbeC1.c1,2000,0111:30:00,29 ,7.951318,137.6613,48.48375,35.00046
sgpcmbeC1.c1,2000,0112:30:00,29 ,2.675086,150.0381, 50.5661,44.44519
sgpcmbeC1.c1,2000,0113:30:00,29 ,4.408318,134.0773,46.30539,38.78357
sgpcmbeC1.c1,2000,0114:30:00,29 ,6.882499,106.2331,  42.036,25.20115
sgpcmbeC1.c1,2000,0115:30:00,29 ,3.589796,93.02581,39.34537,21.40925
sgpcmbeC1.c1,2000,0116:30:00,29 ,6.971915,77.45087,39.27492,19.37575
sgpcmbeC1.c1,2000,0117:30:00,29 ,3.305096,39.62875,17.72474,8.048409
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