datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,02 0:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 1:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 2:30:00,19 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 3:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 4:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 5:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 6:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,02 7:30:00,28 ,       0,23.69964,5.050054,7.841057
sgpcmbeC1.c1,2003,02 8:30:00,28 ,0.018428,54.55749,15.87014,20.90898
sgpcmbeC1.c1,2003,02 9:30:00,28 ,0.001399,117.2785,32.67918,37.13404
sgpcmbeC1.c1,2003,0210:30:00,27 ,0.038028,198.6755,34.66067,47.15624
sgpcmbeC1.c1,2003,0211:30:00,27 ,0.226635,231.8962, 46.2607,69.72296
sgpcmbeC1.c1,2003,0212:30:00,26 ,0.144303,240.8978,46.85068,79.25471
sgpcmbeC1.c1,2003,0213:30:00,26 ,0.111233,246.9679,48.84615, 68.1278
sgpcmbeC1.c1,2003,0214:30:00,28 ,0.210159,223.3566,47.24213,67.61798
sgpcmbeC1.c1,2003,0215:30:00,28 ,       0,156.5134,41.86389,47.28915
sgpcmbeC1.c1,2003,0216:30:00,28 ,       0,103.7508, 30.2937,33.09375
sgpcmbeC1.c1,2003,0217:30:00,28 ,       0,48.56591,17.25801,20.64305
sgpcmbeC1.c1,2003,0218:30:00,28 ,       0,2.303084, 0.49192,0.773694
sgpcmbeC1.c1,2003,0219:30:00,28 ,       0,2.102843,0.107038,0.426039
sgpcmbeC1.c1,2003,0220:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0221:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0222:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0223:30:00,22 ,       0,       0,       0,       0