datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,04 0:30:00,27 ,       0,0.740378,0.030469,0.142756
sgpcmbeC1.c1,2006,04 1:30:00,26 ,       0,2.963238,0.128216,0.582771
sgpcmbeC1.c1,2006,04 2:30:00,27 ,       0,4.144536,0.158176,0.797052
sgpcmbeC1.c1,2006,04 3:30:00,27 ,       0,4.738321,0.198007,0.913102
sgpcmbeC1.c1,2006,04 4:30:00,28 ,       0,1.135149,0.066441,0.224687
sgpcmbeC1.c1,2006,04 5:30:00,30 ,       0,4.633747,0.666671,1.090277
sgpcmbeC1.c1,2006,04 6:30:00,30 ,0.554604,17.63758,9.600786,5.118026
sgpcmbeC1.c1,2006,04 7:30:00,30 ,0.515196,25.47408,11.44581,6.377681
sgpcmbeC1.c1,2006,04 8:30:00,30 ,0.870073,44.84722,14.91842,9.561093
sgpcmbeC1.c1,2006,04 9:30:00,30 ,0.303657,45.51265,16.37742,12.11085
sgpcmbeC1.c1,2006,0410:30:00,30 ,2.633678,56.18444, 17.3398,15.71806
sgpcmbeC1.c1,2006,0411:30:00,30 ,1.851523,60.21013,16.79914, 18.2863
sgpcmbeC1.c1,2006,0412:30:00,30 , 0.50888,49.27195,12.12883,14.18887
sgpcmbeC1.c1,2006,0413:30:00,30 ,2.544268,47.78384,15.65605, 14.9461
sgpcmbeC1.c1,2006,0414:30:00,30 ,2.355003,78.64236,14.59841,16.55035
sgpcmbeC1.c1,2006,0415:30:00,30 ,2.532367, 52.4585,13.70263,10.54873
sgpcmbeC1.c1,2006,0416:30:00,30 ,0.646347,41.78662,16.04203,9.527029
sgpcmbeC1.c1,2006,0417:30:00,30 ,0.207301,31.19309,14.27817,6.550233
sgpcmbeC1.c1,2006,0418:30:00,30 ,       0,20.81673,10.86038,5.180588
sgpcmbeC1.c1,2006,0419:30:00,30 ,       0,4.374061,0.477984,1.015818
sgpcmbeC1.c1,2006,0420:30:00,30 ,       0,1.317364,0.043912,0.240517
sgpcmbeC1.c1,2006,0421:30:00,29 ,       0,1.363787,0.052636, 0.25397
sgpcmbeC1.c1,2006,0422:30:00,28 ,       0,1.063601,0.057245,0.209489
sgpcmbeC1.c1,2006,0423:30:00,29 ,       0,1.153331,0.068642,0.254659