datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,12 0:30:00,31 ,241.2134,340.1564,302.7885,24.24284
sgpcmbeC1.c1,2005,12 1:30:00,31 ,238.1813,339.1101,300.5393,26.21319
sgpcmbeC1.c1,2005,12 2:30:00,31 ,238.8397,332.7279,298.3449,25.72898
sgpcmbeC1.c1,2005,12 3:30:00,31 ,241.3102,339.6546,297.3345,24.75892
sgpcmbeC1.c1,2005,12 4:30:00,31 ,239.1398,338.1668,297.2758,24.90994
sgpcmbeC1.c1,2005,12 5:30:00,31 ,237.4183,340.3158,296.6939, 25.3399
sgpcmbeC1.c1,2005,12 6:30:00,31 ,237.5563,338.2345,296.7493,24.22124
sgpcmbeC1.c1,2005,12 7:30:00,31 ,238.6341,333.7287,296.6846,23.30229
sgpcmbeC1.c1,2005,12 8:30:00,31 ,248.0242,340.6246,304.7704,22.46107
sgpcmbeC1.c1,2005,12 9:30:00,31 ,263.6455, 360.546, 321.394,26.11834
sgpcmbeC1.c1,2005,1210:30:00,31 ,272.2282,   385.7,337.8228, 30.1119
sgpcmbeC1.c1,2005,1211:30:00,30 ,279.5481,410.3855,351.4861,34.22157
sgpcmbeC1.c1,2005,1212:30:00,31 ,280.2017,426.1271,359.7157,35.43024
sgpcmbeC1.c1,2005,1213:30:00,31 , 279.941, 433.329,363.7046,36.52305
sgpcmbeC1.c1,2005,1214:30:00,31 ,274.5435,429.5323,360.6621, 37.0504
sgpcmbeC1.c1,2005,1215:30:00,31 ,271.3658,423.1368,354.4172,36.40105
sgpcmbeC1.c1,2005,1216:30:00,31 ,269.4016,404.6058,341.5945,32.89484
sgpcmbeC1.c1,2005,1217:30:00,31 ,258.9945,379.5931,325.2113,31.02205
sgpcmbeC1.c1,2005,1218:30:00,31 ,251.2397,372.2166,317.2704,29.07882
sgpcmbeC1.c1,2005,1219:30:00,31 ,248.2038,372.8415,315.0513,28.18413
sgpcmbeC1.c1,2005,1220:30:00,31 ,254.5853,369.1163,312.7764,26.33031
sgpcmbeC1.c1,2005,1221:30:00,31 , 247.832,357.9651,310.4696, 25.0465
sgpcmbeC1.c1,2005,1222:30:00,31 , 252.262,349.0715,307.8864,23.62619
sgpcmbeC1.c1,2005,1223:30:00,31 , 247.159,344.0765,305.6462,24.02719