datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,04 0:30:00,30 ,0.546207,28.69337,4.302728, 6.44464
sgpcmbeC1.c1,2005,04 1:30:00,30 ,0.582979,26.83995,4.566504,6.862277
sgpcmbeC1.c1,2005,04 2:30:00,30 ,0.479234,24.64794,4.597933,5.950559
sgpcmbeC1.c1,2005,04 3:30:00,30 ,0.417646,18.93611,4.649294,5.744671
sgpcmbeC1.c1,2005,04 4:30:00,30 ,0.536821,32.29546,4.506764,6.867588
sgpcmbeC1.c1,2005,04 5:30:00,30 ,0.344612,18.47315,3.177266,  4.3584
sgpcmbeC1.c1,2005,04 6:30:00,30 ,0.464514,19.29897,2.928632, 4.02767
sgpcmbeC1.c1,2005,04 7:30:00,30 ,0.654359,20.66159, 3.55636, 4.43944
sgpcmbeC1.c1,2005,04 8:30:00,30 ,0.911618,29.86202,6.917148,8.116083
sgpcmbeC1.c1,2005,04 9:30:00,30 ,0.916139,21.84243,5.445982, 5.75671
sgpcmbeC1.c1,2005,0410:30:00,30 ,0.803898,18.41422,4.541576,4.232744
sgpcmbeC1.c1,2005,0411:30:00,30 ,0.871782,24.66737, 5.89885,7.271546
sgpcmbeC1.c1,2005,0412:30:00,30 ,0.818481,24.31766, 5.75783,5.719292
sgpcmbeC1.c1,2005,0413:30:00,30 ,0.948406,21.57566,5.195943,4.984103
sgpcmbeC1.c1,2005,0414:30:00,29 ,0.992718,12.92394,3.935309,2.997475
sgpcmbeC1.c1,2005,0415:30:00,29 ,0.722447,20.33058,4.422176,4.657705
sgpcmbeC1.c1,2005,0416:30:00,30 ,0.864128,21.94562,6.748221,6.470676
sgpcmbeC1.c1,2005,0417:30:00,30 ,0.660245,25.25687,5.466996,5.843372
sgpcmbeC1.c1,2005,0418:30:00,30 ,0.647313, 20.9884,5.052412, 5.32522
sgpcmbeC1.c1,2005,0419:30:00,30 ,0.537275,22.29082,4.232825,4.837446
sgpcmbeC1.c1,2005,0420:30:00,30 ,0.679398,26.65526,4.968883,5.588691
sgpcmbeC1.c1,2005,0421:30:00,30 ,0.806444,23.13608,6.584735,7.018712
sgpcmbeC1.c1,2005,0422:30:00,30 ,0.589352,32.31872,6.196063,7.626539
sgpcmbeC1.c1,2005,0423:30:00,30 ,0.512646,24.88147,4.589657,5.952106