datastream, year, month, tod,n, min, max, mean, std
twpcmbeC2.c1,2001,02 0:30:00,1 ,4.377936,4.377936,4.377936,       .
twpcmbeC2.c1,2001,02 1:30:00,1 ,4.395063,4.395063,4.395063,       .
twpcmbeC2.c1,2001,02 2:30:00,1 ,4.477311,4.477311,4.477311,       .
twpcmbeC2.c1,2001,02 3:30:00,1 ,4.416124,4.416124,4.416124,       .
twpcmbeC2.c1,2001,02 4:30:00,1 ,4.398018,4.398018,4.398018,       .
twpcmbeC2.c1,2001,02 5:30:00,1 ,4.438453,4.438453,4.438453,       .
twpcmbeC2.c1,2001,02 6:30:00,1 ,4.388086,4.388086,4.388086,       .
twpcmbeC2.c1,2001,02 7:30:00,1 ,4.436452,4.436452,4.436452,       .
twpcmbeC2.c1,2001,02 8:30:00,1 ,4.491778,4.491778,4.491778,       .
twpcmbeC2.c1,2001,02 9:30:00,1 ,4.665716,4.665716,4.665716,       .
twpcmbeC2.c1,2001,0210:30:00,1 ,4.630823,4.630823,4.630823,       .
twpcmbeC2.c1,2001,0211:30:00,1 , 4.50906, 4.50906, 4.50906,       .
twpcmbeC2.c1,2001,0212:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0213:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0214:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0215:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0216:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0217:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0218:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0219:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0220:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0221:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0222:30:00,0 ,       .,       .,       .,       .
twpcmbeC2.c1,2001,0223:30:00,0 ,       .,       .,       .,       .