datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,02 0:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,02 1:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,02 2:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,02 3:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,02 4:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,02 5:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,02 6:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,02 7:30:00,28 ,       0,16.79052,2.627778,4.931349
sgpcmbeC1.c1,2001,02 8:30:00,27 ,0.003197, 150.103,35.94967,51.22298
sgpcmbeC1.c1,2001,02 9:30:00,28 ,0.092747, 319.753,83.74277,117.8438
sgpcmbeC1.c1,2001,0210:30:00,28 , 0.12146,469.9895,143.5923,184.6515
sgpcmbeC1.c1,2001,0211:30:00,28 ,0.011528,565.9993, 184.019, 230.669
sgpcmbeC1.c1,2001,0212:30:00,28 ,0.002663, 642.201,177.8383,249.3869
sgpcmbeC1.c1,2001,0213:30:00,28 ,0.000206,628.0142,192.3801,250.2459
sgpcmbeC1.c1,2001,0214:30:00,28 ,0.018852,548.4564,192.2173,213.9726
sgpcmbeC1.c1,2001,0215:30:00,26 ,0.031799,413.9342,139.4938,160.7417
sgpcmbeC1.c1,2001,0216:30:00,27 ,       0,244.8265,79.61878,87.99202
sgpcmbeC1.c1,2001,0217:30:00,28 ,       0,70.08014,15.81972,20.52698
sgpcmbeC1.c1,2001,0218:30:00,28 ,       0,0.829707,0.113203,  0.2121
sgpcmbeC1.c1,2001,0219:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0220:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0221:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0222:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0223:30:00,19 ,       0,0.152801,0.008042,0.035055