datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,08 0:30:00,31 ,       0,1.354576,0.160799,0.391384
sgpcmbeC1.c1,2004,08 1:30:00,31 ,       0,0.801127,0.025843,0.143887
sgpcmbeC1.c1,2004,08 2:30:00,31 ,       0,0.793812,0.036492, 0.15305
sgpcmbeC1.c1,2004,08 3:30:00,31 ,       0,1.010576,0.050038,0.202969
sgpcmbeC1.c1,2004,08 4:30:00,31 ,       0,0.864032,0.027872,0.155185
sgpcmbeC1.c1,2004,08 5:30:00,31 ,       0, 9.36162,3.407408,2.321733
sgpcmbeC1.c1,2004,08 6:30:00,31 ,7.465686,37.49115,18.77363,7.498249
sgpcmbeC1.c1,2004,08 7:30:00,31 ,4.464503,74.43095,23.87927,19.77581
sgpcmbeC1.c1,2004,08 8:30:00,31 ,3.048366,96.11375,29.53581,27.06799
sgpcmbeC1.c1,2004,08 9:30:00,31 ,1.578942, 100.809,37.79531,33.96995
sgpcmbeC1.c1,2004,0810:30:00,31 ,1.005555,158.5241,39.19083,42.15419
sgpcmbeC1.c1,2004,0811:30:00,31 ,1.455531, 122.683,33.08544,30.05331
sgpcmbeC1.c1,2004,0812:30:00,31 ,0.864552,150.8296,37.00499,37.72052
sgpcmbeC1.c1,2004,0813:30:00,31 ,1.185331,178.7966,46.56631, 50.4409
sgpcmbeC1.c1,2004,0814:30:00,31 ,1.509946, 133.832,42.89309,38.80306
sgpcmbeC1.c1,2004,0815:30:00,31 ,2.474901,91.11246,27.53071,26.09658
sgpcmbeC1.c1,2004,0816:30:00,31 ,2.978812,81.62267,22.64202,19.46072
sgpcmbeC1.c1,2004,0817:30:00,31 ,3.884979,53.16673,18.21774,13.46293
sgpcmbeC1.c1,2004,0818:30:00,31 ,3.064942,47.23067,19.12134,10.74869
sgpcmbeC1.c1,2004,0819:30:00,31 ,       0,13.18152,6.718755,3.788527
sgpcmbeC1.c1,2004,0820:30:00,31 ,       0,0.644914,0.031972,0.129628
sgpcmbeC1.c1,2004,0821:30:00,31 ,       0,0.954653,0.098951,0.272411
sgpcmbeC1.c1,2004,0822:30:00,31 ,       0,0.505237,0.038973,0.124417
sgpcmbeC1.c1,2004,0823:30:00,31 ,       0,0.917314,0.029591,0.164755