datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,11 0:30:00,27 ,       0,396.1465,39.80464,104.4505
sgpcmbeC1.c1,2002,11 1:30:00,27 ,       0,757.7872,69.14652,188.6728
sgpcmbeC1.c1,2002,11 2:30:00,27 ,       0,414.8067,41.92948,108.5073
sgpcmbeC1.c1,2002,11 3:30:00,27 ,       0,1029.389,67.36448,214.0808
sgpcmbeC1.c1,2002,11 4:30:00,27 ,       0, 868.334,60.33097,179.7178
sgpcmbeC1.c1,2002,11 5:30:00,27 ,       0, 1123.83,64.87592,220.0232
sgpcmbeC1.c1,2002,11 6:30:00,27 ,       0,1465.126,74.50078,282.1638
sgpcmbeC1.c1,2002,11 7:30:00,27 ,       0,495.6642,37.54303,103.1683
sgpcmbeC1.c1,2002,11 8:30:00,27 ,       0,494.0725,41.81275,117.8673
sgpcmbeC1.c1,2002,11 9:30:00,30 ,       0,598.6594,42.76363,125.5078
sgpcmbeC1.c1,2002,1110:30:00,30 ,       0,754.4973,37.50273,138.1642
sgpcmbeC1.c1,2002,1111:30:00,30 ,       0,650.4198,39.70761,121.7511
sgpcmbeC1.c1,2002,1112:30:00,30 ,       0,506.9595,38.21635,100.7275
sgpcmbeC1.c1,2002,1113:30:00,29 ,       0,524.1129,47.11068,114.3928
sgpcmbeC1.c1,2002,1114:30:00,28 ,       0,465.1373,41.46083,116.0085
sgpcmbeC1.c1,2002,1115:30:00,27 ,       0,437.2587,39.08629,109.9582
sgpcmbeC1.c1,2002,1116:30:00,27 ,       0, 652.512, 37.3174,126.9586
sgpcmbeC1.c1,2002,1117:30:00,27 ,0.011737,367.9214,24.70289,70.98665
sgpcmbeC1.c1,2002,1118:30:00,27 ,0.018893,510.7366,28.04073,98.08928
sgpcmbeC1.c1,2002,1119:30:00,27 ,0.006025,449.0189,28.55501,90.69287
sgpcmbeC1.c1,2002,1120:30:00,27 ,       0,512.2391,34.31782, 106.327
sgpcmbeC1.c1,2002,1121:30:00,27 ,       0,  530.17,31.90686,108.0063
sgpcmbeC1.c1,2002,1122:30:00,27 ,       0,443.4633,25.84713, 86.8415
sgpcmbeC1.c1,2002,1123:30:00,27 ,       0,410.7949, 27.4229,83.59836