datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,04 0:30:00,28 ,       0,146.6669,15.62013,36.98961
sgpcmbeC1.c1,1998,04 1:30:00,28 ,       0,105.2084,10.75183, 24.0014
sgpcmbeC1.c1,1998,04 2:30:00,28 ,       0,144.9464,15.51594,37.88684
sgpcmbeC1.c1,1998,04 3:30:00,27 ,       0, 156.356,10.16567,31.49663
sgpcmbeC1.c1,1998,04 4:30:00,27 ,       0,50.59784,6.524961,13.55628
sgpcmbeC1.c1,1998,04 5:30:00,27 ,       0,73.27393,6.405479,14.65742
sgpcmbeC1.c1,1998,04 6:30:00,28 ,       0,107.2627,11.73215,25.52113
sgpcmbeC1.c1,1998,04 7:30:00,28 ,       0,153.4286,14.23729,32.60937
sgpcmbeC1.c1,1998,04 8:30:00,28 ,       0,139.2205,16.48298,34.78328
sgpcmbeC1.c1,1998,04 9:30:00,28 ,       0,167.5674,19.91481,37.75047
sgpcmbeC1.c1,1998,0410:30:00,29 ,       0,190.0503,23.48947,42.88354
sgpcmbeC1.c1,1998,0411:30:00,27 ,       0,106.9744,15.23163,27.58357
sgpcmbeC1.c1,1998,0412:30:00,27 ,0.358907,155.0034,20.39451, 34.6885
sgpcmbeC1.c1,1998,0413:30:00,28 ,0.013106,409.6884,35.09381,81.07871
sgpcmbeC1.c1,1998,0414:30:00,28 ,0.003547,534.1602,38.70531,102.3798
sgpcmbeC1.c1,1998,0415:30:00,29 ,0.080726,155.4277,19.11778,34.86736
sgpcmbeC1.c1,1998,0416:30:00,29 ,0.659407,272.7834,23.84257,58.58491
sgpcmbeC1.c1,1998,0417:30:00,28 ,1.140616,201.4922,20.13064,42.70346
sgpcmbeC1.c1,1998,0418:30:00,30 , 1.35507,202.0808,34.66294,60.81023
sgpcmbeC1.c1,1998,0419:30:00,30 ,1.321643,226.7723,31.00341,57.40622
sgpcmbeC1.c1,1998,0420:30:00,28 ,1.325683,132.8534,17.70682,31.33565
sgpcmbeC1.c1,1998,0421:30:00,29 ,1.036942,87.79333,11.94457,21.83614
sgpcmbeC1.c1,1998,0422:30:00,28 ,0.631142,95.23857,13.01264,26.22165
sgpcmbeC1.c1,1998,0423:30:00,28 ,       0, 292.315, 17.7671, 55.3796