datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,09 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,09 5:30:00,30 ,       0,1.452211,0.077798,0.305398
sgpcmbeC1.c1,2001,09 6:30:00,30 ,6.380113,23.66747, 13.2046,4.032756
sgpcmbeC1.c1,2001,09 7:30:00,30 ,4.517847,41.94351,15.63963, 10.1766
sgpcmbeC1.c1,2001,09 8:30:00,29 ,2.061489,72.73634, 20.5983,22.17382
sgpcmbeC1.c1,2001,09 9:30:00,30 ,1.236954,91.29671,23.20352,27.72805
sgpcmbeC1.c1,2001,0910:30:00,30 ,0.584611,92.59861,21.27268,25.73846
sgpcmbeC1.c1,2001,0911:30:00,30 ,0.576991,114.3135,28.19071,31.19019
sgpcmbeC1.c1,2001,0912:30:00,30 ,0.319189,112.7217,31.96097,34.49356
sgpcmbeC1.c1,2001,0913:30:00,30 ,0.500102,  181.33,38.07566,45.28004
sgpcmbeC1.c1,2001,0914:30:00,30 ,0.766877,190.1058,28.27781,45.38937
sgpcmbeC1.c1,2001,0915:30:00,30 ,0.898046, 86.4285,23.16303,26.37794
sgpcmbeC1.c1,2001,0916:30:00,30 ,2.827619,59.81296,14.07184,13.84488
sgpcmbeC1.c1,2001,0917:30:00,30 ,1.997054,42.34634,14.68965,10.16492
sgpcmbeC1.c1,2001,0918:30:00,30 ,4.659553,25.68063,10.86313,4.850875
sgpcmbeC1.c1,2001,0919:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0921:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0923:30:00,30 ,       0,       0,       0,       0