datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,08 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,08 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,08 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,08 5:30:00,31 ,       0, 1.72735,0.397178,0.551598
sgpcmbeC1.c1,2004,08 6:30:00,31 ,1.438532,33.14762,16.18344,8.129147
sgpcmbeC1.c1,2004,08 7:30:00,31 ,3.108449,75.73901,48.80437,23.89744
sgpcmbeC1.c1,2004,08 8:30:00,31 ,7.025329,115.7987,80.07225,34.66208
sgpcmbeC1.c1,2004,08 9:30:00,31 ,12.60875,152.3738,110.0157,41.59186
sgpcmbeC1.c1,2004,0810:30:00,31 ,27.37536,179.2955,140.3105,45.88684
sgpcmbeC1.c1,2004,0811:30:00,31 ,14.25852,  197.89,153.4654,47.49747
sgpcmbeC1.c1,2004,0812:30:00,31 ,30.45477,205.2978,163.4724,41.38022
sgpcmbeC1.c1,2004,0813:30:00,31 ,72.39534,195.4417,159.0531, 32.7306
sgpcmbeC1.c1,2004,0814:30:00,31 ,43.67266,178.1125,144.5606,34.42109
sgpcmbeC1.c1,2004,0815:30:00,31 ,52.13884,152.3383,124.4527,26.56724
sgpcmbeC1.c1,2004,0816:30:00,31 ,46.56694,116.6356, 97.5397,22.52481
sgpcmbeC1.c1,2004,0817:30:00,31 ,5.849558,80.45174,61.07187,17.23255
sgpcmbeC1.c1,2004,0818:30:00,31 ,2.116502,36.11493,22.27218,8.970573
sgpcmbeC1.c1,2004,0819:30:00,31 ,       0,3.901298,0.986323,1.202829
sgpcmbeC1.c1,2004,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2004,0823:30:00,31 ,       0,       0,       0,       0