datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,02 0:30:00,28 ,264.1971,353.6267,304.1753,26.32181
sgpcmbeC1.c1,2006,02 1:30:00,28 ,264.2899,361.3324,304.3217,27.16241
sgpcmbeC1.c1,2006,02 2:30:00,28 ,262.1558,  362.71,302.9676,28.19141
sgpcmbeC1.c1,2006,02 3:30:00,28 ,261.7231,364.5674,303.0822,28.75376
sgpcmbeC1.c1,2006,02 4:30:00,28 ,257.1134,359.9697,302.2385,27.81216
sgpcmbeC1.c1,2006,02 5:30:00,28 ,260.2352,352.3274,299.5407,25.28656
sgpcmbeC1.c1,2006,02 6:30:00,28 ,259.3763,356.1375,299.7582,25.00931
sgpcmbeC1.c1,2006,02 7:30:00,28 , 259.595, 351.471,301.5962,24.40992
sgpcmbeC1.c1,2006,02 8:30:00,28 , 262.871,365.1283, 314.575,24.30128
sgpcmbeC1.c1,2006,02 9:30:00,28 ,267.1293,395.3272,334.1888,29.19571
sgpcmbeC1.c1,2006,0210:30:00,28 ,274.7367,431.6747,351.8746,34.45509
sgpcmbeC1.c1,2006,0211:30:00,28 ,278.5676,456.3097,368.1738,39.62675
sgpcmbeC1.c1,2006,0212:30:00,28 ,287.5672,473.6191,379.5107,42.01045
sgpcmbeC1.c1,2006,0213:30:00,28 ,296.9117,487.2385,385.0648,43.58401
sgpcmbeC1.c1,2006,0214:30:00,28 ,300.0891,480.2496,384.4782,42.93014
sgpcmbeC1.c1,2006,0215:30:00,28 ,300.5968,474.8615,377.9725,41.30838
sgpcmbeC1.c1,2006,0216:30:00,28 , 292.061,459.1259,366.3767,   38.83
sgpcmbeC1.c1,2006,0217:30:00,28 ,285.0478,432.7796, 347.805,35.01524
sgpcmbeC1.c1,2006,0218:30:00,28 ,280.3813,400.8509, 328.279, 30.2408
sgpcmbeC1.c1,2006,0219:30:00,27 ,279.2249,387.3734,320.3311,28.69714
sgpcmbeC1.c1,2006,0220:30:00,28 ,276.2758, 382.205,313.6382,27.89345
sgpcmbeC1.c1,2006,0221:30:00,28 ,273.0702,386.1137,312.0265,27.60651
sgpcmbeC1.c1,2006,0222:30:00,28 ,269.8115,382.9691,309.5095,27.85005
sgpcmbeC1.c1,2006,0223:30:00,28 ,265.2916,379.3752,306.7663, 28.2559