datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,02 0:30:00,28 ,       0,2.275924,0.309187,0.545466
sgpcmbeC1.c1,2005,02 1:30:00,28 ,       0,2.364776,0.190558,0.490996
sgpcmbeC1.c1,2005,02 2:30:00,28 ,       0,1.012419,0.136533,0.295988
sgpcmbeC1.c1,2005,02 3:30:00,28 ,       0,1.592744,0.138568,0.384068
sgpcmbeC1.c1,2005,02 4:30:00,28 ,       0,1.177455, 0.10362,0.269081
sgpcmbeC1.c1,2005,02 5:30:00,28 ,       0,0.818775,0.080986,0.210439
sgpcmbeC1.c1,2005,02 6:30:00,28 ,       0,1.403256,0.149901,0.392778
sgpcmbeC1.c1,2005,02 7:30:00,28 ,1.031033,53.68196,20.21979,14.59597
sgpcmbeC1.c1,2005,02 8:30:00,28 ,14.78375, 253.079,116.6313,75.70917
sgpcmbeC1.c1,2005,02 9:30:00,28 ,28.39211,452.5032,245.9876,143.3627
sgpcmbeC1.c1,2005,0210:30:00,28 ,66.25035,621.1435,365.5102, 194.117
sgpcmbeC1.c1,2005,0211:30:00,28 ,76.40465,720.2638, 431.101,239.1068
sgpcmbeC1.c1,2005,0212:30:00,28 ,91.06313,784.3463,442.3888,254.9027
sgpcmbeC1.c1,2005,0213:30:00,28 , 86.9977,784.2786,435.9959,260.6324
sgpcmbeC1.c1,2005,0214:30:00,28 ,50.89762,671.2252,355.4321,222.1631
sgpcmbeC1.c1,2005,0215:30:00,28 ,36.52624,486.2186,274.4067,158.3229
sgpcmbeC1.c1,2005,0216:30:00,28 ,23.24845,343.2488,165.1847,103.2077
sgpcmbeC1.c1,2005,0217:30:00,28 ,6.074921,151.6521,56.12927,39.54987
sgpcmbeC1.c1,2005,0218:30:00,28 ,       0,12.03068,2.737293,2.891916
sgpcmbeC1.c1,2005,0219:30:00,28 ,       0,3.066798,0.373932,0.798589
sgpcmbeC1.c1,2005,0220:30:00,28 ,       0,2.091423,0.359038,0.648938
sgpcmbeC1.c1,2005,0221:30:00,28 ,       0,1.860718,0.341523,0.624455
sgpcmbeC1.c1,2005,0222:30:00,28 ,       0,2.125345,0.352324,0.625567
sgpcmbeC1.c1,2005,0223:30:00,28 ,       0,2.727162,0.188071,0.560449