datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,02 0:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,02 1:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,02 2:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,02 3:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,02 4:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,02 5:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,02 6:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,02 7:30:00,23 ,0.061308,0.974574,0.589796,0.281737
sgpcmbeC1.c1,2001,02 8:30:00,27 ,       0,0.999886,0.658555,0.429953
sgpcmbeC1.c1,2001,02 9:30:00,27 ,8.024E-6,       1,0.725137,0.400327
sgpcmbeC1.c1,2001,0210:30:00,27 ,0.000016,       1,0.661905,0.418811
sgpcmbeC1.c1,2001,0211:30:00,27 ,0.000057,       1,0.660156,0.459939
sgpcmbeC1.c1,2001,0212:30:00,27 ,0.000236,       1,0.714573,0.416959
sgpcmbeC1.c1,2001,0213:30:00,27 , 0.00114,       1,0.659208,0.440212
sgpcmbeC1.c1,2001,0214:30:00,27 ,0.000615,       1,0.610516,0.445393
sgpcmbeC1.c1,2001,0215:30:00,27 ,0.001857,0.999996,0.591801,0.460814
sgpcmbeC1.c1,2001,0216:30:00,27 ,0.002417,0.999971,0.531331,0.447473
sgpcmbeC1.c1,2001,0217:30:00,27 , 0.00145,0.988306,0.500492,0.447198
sgpcmbeC1.c1,2001,0218:30:00,14 ,0.001133,0.988546,0.499318,0.421793
sgpcmbeC1.c1,2001,0219:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,0220:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,0221:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,0222:30:00,0 ,       .,       .,       .,       .
sgpcmbeC1.c1,2001,0223:30:00,0 ,       .,       .,       .,       .