datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,04 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,04 5:30:00,30 ,       0,1.599645,0.134748,0.315061
sgpcmbeC1.c1,2003,04 6:30:00,30 ,       0,  47.959,20.15313,15.38821
sgpcmbeC1.c1,2003,04 7:30:00,30 ,0.051079,88.99218,  47.455,25.61587
sgpcmbeC1.c1,2003,04 8:30:00,30 ,0.168907,158.9387,58.06537, 36.7207
sgpcmbeC1.c1,2003,04 9:30:00,30 ,0.328485,186.5456,66.91293,49.57418
sgpcmbeC1.c1,2003,0410:30:00,30 ,0.670001,330.2044,77.48692,85.53766
sgpcmbeC1.c1,2003,0411:30:00,30 ,0.657807,367.2734,92.53233,108.6271
sgpcmbeC1.c1,2003,0412:30:00,30 ,1.514967,321.1903,74.83706,94.13406
sgpcmbeC1.c1,2003,0413:30:00,30 ,3.413181,359.5554,95.66903,104.7059
sgpcmbeC1.c1,2003,0414:30:00,30 ,0.118058,308.2107,83.31148,76.49674
sgpcmbeC1.c1,2003,0415:30:00,30 , 0.17725,240.0835,89.78372,60.47001
sgpcmbeC1.c1,2003,0416:30:00,30 , 0.25822,170.2129,69.92843,33.93737
sgpcmbeC1.c1,2003,0417:30:00,30 ,0.041745,114.7027,53.41603,23.75531
sgpcmbeC1.c1,2003,0418:30:00,30 ,       0,40.74022, 22.8636,12.81187
sgpcmbeC1.c1,2003,0419:30:00,30 ,       0,2.597732,0.618295,0.792373
sgpcmbeC1.c1,2003,0420:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0421:30:00,30 ,       0,3.559245,0.118642,0.649826
sgpcmbeC1.c1,2003,0422:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0423:30:00,29 ,       0,       0,       0,       0