datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,09 0:30:00,29 ,       0,326.4167,23.30706,60.96227
sgpcmbeC1.c1,2006,09 1:30:00,30 ,       0,771.1314,48.82915,143.2203
sgpcmbeC1.c1,2006,09 2:30:00,30 ,       0,473.1517, 38.6236,92.08285
sgpcmbeC1.c1,2006,09 3:30:00,30 ,       0,443.2064,41.91031,95.69506
sgpcmbeC1.c1,2006,09 4:30:00,30 ,       0,697.0986,46.15111,132.5935
sgpcmbeC1.c1,2006,09 5:30:00,30 ,       0,379.6137,28.24457,75.67059
sgpcmbeC1.c1,2006,09 6:30:00,30 ,       0,684.4617,37.86643,125.7353
sgpcmbeC1.c1,2006,09 7:30:00,30 ,       0,1368.408,71.10199,251.2682
sgpcmbeC1.c1,2006,09 8:30:00,30 ,       0,907.0031,78.85948,212.0642
sgpcmbeC1.c1,2006,09 9:30:00,30 ,       0,413.0598,37.61561,87.25759
sgpcmbeC1.c1,2006,0910:30:00,30 ,       0,354.0218,30.39218,75.12785
sgpcmbeC1.c1,2006,0911:30:00,30 ,       0,163.0202,20.61485,34.81592
sgpcmbeC1.c1,2006,0912:30:00,30 ,       0,265.0572,35.13198,66.41187
sgpcmbeC1.c1,2006,0913:30:00,30 ,       0,165.5253,21.24271,36.75335
sgpcmbeC1.c1,2006,0914:30:00,30 ,       0,177.1879,23.04244,41.66569
sgpcmbeC1.c1,2006,0915:30:00,30 ,       0,242.0729, 25.2544, 54.6852
sgpcmbeC1.c1,2006,0916:30:00,30 ,       0,89.66333,13.81805, 24.6059
sgpcmbeC1.c1,2006,0917:30:00,30 ,       0,63.89924,10.71437,14.64903
sgpcmbeC1.c1,2006,0918:30:00,30 ,       0,51.07229,9.466718,13.03827
sgpcmbeC1.c1,2006,0919:30:00,30 ,       0, 126.335,15.56253,30.05412
sgpcmbeC1.c1,2006,0920:30:00,30 ,       0,266.8423,21.47152,50.86876
sgpcmbeC1.c1,2006,0921:30:00,29 ,       0,174.9259,16.47179,35.59504
sgpcmbeC1.c1,2006,0922:30:00,29 ,       0,266.0378,17.75015,50.52416
sgpcmbeC1.c1,2006,0923:30:00,29 ,       0,50.75021,9.187315,14.32934