datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,11 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,11 2:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,11 3:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,11 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,11 5:30:00,28 ,       0,0.060332,0.002155,0.011402
sgpcmbeC1.c1,2006,11 6:30:00,29 ,       0,0.293705,0.018304,0.057228
sgpcmbeC1.c1,2006,11 7:30:00,30 ,       0,27.29247,8.806613,8.490939
sgpcmbeC1.c1,2006,11 8:30:00,24 ,0.200821,158.7276,46.32331,36.03365
sgpcmbeC1.c1,2006,11 9:30:00,27 ,5.238088, 155.873,65.66319, 38.2881
sgpcmbeC1.c1,2006,1110:30:00,26 ,13.85433, 139.838,85.40421,34.27824
sgpcmbeC1.c1,2006,1111:30:00,28 ,17.57831,132.1278,94.82057,32.04502
sgpcmbeC1.c1,2006,1112:30:00,29 ,9.937159,134.0952,102.0904,33.09738
sgpcmbeC1.c1,2006,1113:30:00,29 ,5.788047,141.6808, 93.3087,34.45791
sgpcmbeC1.c1,2006,1114:30:00,29 ,7.575792,107.6336,77.19774,28.89146
sgpcmbeC1.c1,2006,1115:30:00,29 ,2.967967,85.55385,53.90328,21.05827
sgpcmbeC1.c1,2006,1116:30:00,29 ,  3.1078, 39.7926,22.33525,9.227489
sgpcmbeC1.c1,2006,1117:30:00,30 ,       0,5.146497,1.385629,1.316361
sgpcmbeC1.c1,2006,1118:30:00,28 ,       0,0.189925,0.006783,0.035892
sgpcmbeC1.c1,2006,1119:30:00,29 ,       0,0.588541,0.020295,0.109289
sgpcmbeC1.c1,2006,1120:30:00,28 ,       0,0.164879,0.005889,0.031159
sgpcmbeC1.c1,2006,1121:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1122:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,1123:30:00,29 ,       0,       0,       0,       0