datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,05 0:30:00,30 ,       0,0.347923,0.012559,0.063559
sgpcmbeC1.c1,2001,05 1:30:00,30 ,       0,0.232784,0.008079,0.042476
sgpcmbeC1.c1,2001,05 2:30:00,30 ,       0,0.204073,0.009737,0.038984
sgpcmbeC1.c1,2001,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 4:30:00,31 ,       0,0.256183,0.008499,0.045983
sgpcmbeC1.c1,2001,05 5:30:00,31 ,       0,9.564839,4.231701,3.092361
sgpcmbeC1.c1,2001,05 6:30:00,31 ,       0,18.19997,10.18019,5.346369
sgpcmbeC1.c1,2001,05 7:30:00,31 ,0.603483,33.99477,13.79091,6.914678
sgpcmbeC1.c1,2001,05 8:30:00,31 ,6.582732,42.22701,14.71447,9.310176
sgpcmbeC1.c1,2001,05 9:30:00,31 ,3.376731,45.69471,15.01643,10.87363
sgpcmbeC1.c1,2001,0510:30:00,31 ,1.742476,55.19378,18.63437,15.65796
sgpcmbeC1.c1,2001,0511:30:00,31 ,0.676306,54.71443,   20.69,19.68945
sgpcmbeC1.c1,2001,0512:30:00,31 ,0.764084,63.03539,21.50831,19.06755
sgpcmbeC1.c1,2001,0513:30:00,31 ,1.677565,59.91211,26.21954,21.23467
sgpcmbeC1.c1,2001,0514:30:00,31 ,2.713902,57.36428,27.67488,19.08607
sgpcmbeC1.c1,2001,0515:30:00,31 ,0.844801,66.33009,28.19871,19.30526
sgpcmbeC1.c1,2001,0516:30:00,31 ,0.521018,46.94349,21.27818,13.44457
sgpcmbeC1.c1,2001,0517:30:00,31 ,0.167889,36.56958,14.39833,7.743353
sgpcmbeC1.c1,2001,0518:30:00,31 ,0.387958,20.39746,12.61794,5.050072
sgpcmbeC1.c1,2001,0519:30:00,31 ,       0,  7.2134,2.916704,2.301933
sgpcmbeC1.c1,2001,0520:30:00,29 ,       0,0.101911,0.004679,0.019723
sgpcmbeC1.c1,2001,0521:30:00,30 ,       0,0.027828,0.001851,0.006841
sgpcmbeC1.c1,2001,0522:30:00,29 ,       0,1.147265,0.044278,0.212991
sgpcmbeC1.c1,2001,0523:30:00,30 ,       0,0.854999,0.029237,0.156014