datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,02 0:30:00,19 ,0.811837,34.30927,5.370008,8.497604
sgpcmbeC1.c1,2006,02 1:30:00,19 ,0.906064,16.90055,3.365961,4.064219
sgpcmbeC1.c1,2006,02 2:30:00,17 ,0.302066,18.28935,3.814337,4.939336
sgpcmbeC1.c1,2006,02 3:30:00,17 ,0.559209,26.26959,5.301468,7.235252
sgpcmbeC1.c1,2006,02 4:30:00,17 , 0.31849,20.61762,5.015133,6.509219
sgpcmbeC1.c1,2006,02 5:30:00,17 ,0.313101,30.70373,5.602798, 8.06414
sgpcmbeC1.c1,2006,02 6:30:00,17 ,0.500197,28.32905,4.753474,6.771784
sgpcmbeC1.c1,2006,02 7:30:00,17 ,0.300849,13.41225,  3.3986,3.467911
sgpcmbeC1.c1,2006,02 8:30:00,18 ,       0,16.72587,3.142062,4.356051
sgpcmbeC1.c1,2006,02 9:30:00,20 ,       0,15.89712,4.604875,5.151283
sgpcmbeC1.c1,2006,0210:30:00,20 ,0.003855,31.62266,6.744857,9.721494
sgpcmbeC1.c1,2006,0211:30:00,20 , 0.11569,22.77027,4.937721,7.121112
sgpcmbeC1.c1,2006,0212:30:00,20 ,0.426024,42.61565,6.003568,10.89215
sgpcmbeC1.c1,2006,0213:30:00,20 ,0.323402, 48.9984,5.371764,11.44077
sgpcmbeC1.c1,2006,0214:30:00,19 ,0.238668,16.46143,3.749632,5.279074
sgpcmbeC1.c1,2006,0215:30:00,19 ,0.234389,20.69473,4.134189,6.485676
sgpcmbeC1.c1,2006,0216:30:00,19 ,0.156822,36.73928,5.971089, 10.0366
sgpcmbeC1.c1,2006,0217:30:00,19 ,0.165943,62.97848,6.400456,14.63852
sgpcmbeC1.c1,2006,0218:30:00,18 ,1.104527,76.34241, 7.97501,17.76561
sgpcmbeC1.c1,2006,0219:30:00,18 ,1.006125,40.22525,5.788375,10.07451
sgpcmbeC1.c1,2006,0220:30:00,18 ,0.776141,42.90638,7.633105,13.65584
sgpcmbeC1.c1,2006,0221:30:00,18 , 0.93568,30.83154,5.243754,8.345501
sgpcmbeC1.c1,2006,0222:30:00,18 ,0.732232,16.56669,3.182612,4.039434
sgpcmbeC1.c1,2006,0223:30:00,18 ,1.204125,34.69011, 4.35143, 7.97533