datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,10 0:30:00,30 ,       0, 0.71434,0.023811, 0.13042
sgpcmbeC1.c1,2002,10 1:30:00,30 ,       0,1.621511, 0.05405,0.296046
sgpcmbeC1.c1,2002,10 2:30:00,31 ,       0,0.403659,0.013021,0.072499
sgpcmbeC1.c1,2002,10 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,10 6:30:00,31 ,       0,  15.386,3.307673,4.140451
sgpcmbeC1.c1,2002,10 7:30:00,31 ,2.972712,170.3034,57.49177,51.32699
sgpcmbeC1.c1,2002,10 8:30:00,31 ,8.723219,383.2355,158.5967,125.5847
sgpcmbeC1.c1,2002,10 9:30:00,31 ,17.99067,570.4651, 243.679,189.4498
sgpcmbeC1.c1,2002,1010:30:00,31 ,28.76754, 713.176,345.8693,245.6403
sgpcmbeC1.c1,2002,1011:30:00,31 ,60.22471,796.2618,410.8658,276.2879
sgpcmbeC1.c1,2002,1012:30:00,31 ,20.37316,812.5283,434.4928,270.2557
sgpcmbeC1.c1,2002,1013:30:00,31 ,57.96947,765.5326,404.4263,261.0146
sgpcmbeC1.c1,2002,1014:30:00,31 ,18.38905,656.8569,348.7889, 220.973
sgpcmbeC1.c1,2002,1015:30:00,31 ,16.57269,494.2787, 247.945, 170.229
sgpcmbeC1.c1,2002,1016:30:00,31 ,11.44424,296.5448, 135.868,99.84314
sgpcmbeC1.c1,2002,1017:30:00,31 ,0.102872,92.09705,32.51012, 28.5543
sgpcmbeC1.c1,2002,1018:30:00,31 ,       0,3.123162,0.467742,0.808441
sgpcmbeC1.c1,2002,1019:30:00,31 ,       0,1.133317,0.078327,0.254084
sgpcmbeC1.c1,2002,1020:30:00,31 ,       0,1.024599, 0.03829,0.185357
sgpcmbeC1.c1,2002,1021:30:00,31 ,       0,0.051571,0.001664,0.009262
sgpcmbeC1.c1,2002,1022:30:00,31 ,       0,0.967659,0.031215,0.173797
sgpcmbeC1.c1,2002,1023:30:00,30 ,       0,       0,       0,       0