datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,02 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 1:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 2:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 3:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 4:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 5:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,02 6:30:00,29 ,       0,0.039102,0.001348,0.007261
sgpcmbeC1.c1,2000,02 7:30:00,29 ,       0,16.23872,5.602682, 4.64252
sgpcmbeC1.c1,2000,02 8:30:00,29 ,1.296732,61.66674,35.12616,15.86619
sgpcmbeC1.c1,2000,02 9:30:00,29 ,4.797893,136.4972,68.33003,29.65505
sgpcmbeC1.c1,2000,0210:30:00,29 ,16.23908,192.2248,99.69254,34.71815
sgpcmbeC1.c1,2000,0211:30:00,29 ,15.69275, 252.757,117.1633,42.67211
sgpcmbeC1.c1,2000,0212:30:00,29 ,27.79076,234.8484,120.4428,40.86249
sgpcmbeC1.c1,2000,0213:30:00,29 ,19.78572,230.8831,115.0369,43.72224
sgpcmbeC1.c1,2000,0214:30:00,29 ,3.960206,179.3785,103.3936,38.02492
sgpcmbeC1.c1,2000,0215:30:00,29 ,11.28473,110.5029,76.95598,28.69753
sgpcmbeC1.c1,2000,0216:30:00,29 ,5.507693,80.67174,50.48319,22.12635
sgpcmbeC1.c1,2000,0217:30:00,29 , 0.71793,34.22979,17.08917,9.232106
sgpcmbeC1.c1,2000,0218:30:00,29 ,       0,2.143418,0.301559,0.561745
sgpcmbeC1.c1,2000,0219:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0220:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0221:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0222:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,0223:30:00,26 ,       0,       0,       0,       0