datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,05 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 5:30:00,31 ,       0,9.376415,3.547589,3.117204
sgpcmbeC1.c1,2001,05 6:30:00,31 ,       0,55.56435, 29.7868,17.57276
sgpcmbeC1.c1,2001,05 7:30:00,31 ,0.217918,98.18237,64.48206,  30.872
sgpcmbeC1.c1,2001,05 8:30:00,31 ,18.48951,134.3522,95.82809,38.41621
sgpcmbeC1.c1,2001,05 9:30:00,31 , 19.8459, 155.337,119.8485,41.45244
sgpcmbeC1.c1,2001,0510:30:00,31 , 35.2879,173.5284,137.9581,43.62124
sgpcmbeC1.c1,2001,0511:30:00,31 , 7.08019,187.2808,143.5099,46.67738
sgpcmbeC1.c1,2001,0512:30:00,31 ,8.108604,188.1873,141.3502,51.78556
sgpcmbeC1.c1,2001,0513:30:00,31 ,5.504731,184.7152,131.2016,53.79554
sgpcmbeC1.c1,2001,0514:30:00,31 ,3.415672,175.6239,126.8071,51.79366
sgpcmbeC1.c1,2001,0515:30:00,31 ,0.685121,159.2618,108.0449,45.81172
sgpcmbeC1.c1,2001,0516:30:00,31 ,1.639946,121.5102,85.24148,39.31498
sgpcmbeC1.c1,2001,0517:30:00,31 ,3.023981,93.71623,60.03461,28.02141
sgpcmbeC1.c1,2001,0518:30:00,31 ,0.156486,45.74375,26.92652,13.73296
sgpcmbeC1.c1,2001,0519:30:00,31 ,       0,6.236746,2.056218,1.855783
sgpcmbeC1.c1,2001,0520:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0521:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0522:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0523:30:00,30 ,       0,       0,       0,       0