datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,02 0:30:00,28 ,       0,1.699606,0.379609,0.539902
sgpcmbeC1.c1,2005,02 1:30:00,28 ,       0,1.566427,0.260913,0.458906
sgpcmbeC1.c1,2005,02 2:30:00,28 ,       0,1.390461,0.233633, 0.45132
sgpcmbeC1.c1,2005,02 3:30:00,28 ,       0,1.707823,0.183001,0.431838
sgpcmbeC1.c1,2005,02 4:30:00,28 ,       0,1.347407,0.199214, 0.41772
sgpcmbeC1.c1,2005,02 5:30:00,28 ,       0,1.331028,0.180636,0.403529
sgpcmbeC1.c1,2005,02 6:30:00,28 ,       0,1.731285,0.220507,0.552141
sgpcmbeC1.c1,2005,02 7:30:00,28 ,1.902665,21.44312,11.29432, 5.90377
sgpcmbeC1.c1,2005,02 8:30:00,28 ,3.350054,52.29881,16.52598,11.47214
sgpcmbeC1.c1,2005,02 9:30:00,28 ,2.788321,80.54301,22.02396,20.10144
sgpcmbeC1.c1,2005,0210:30:00,28 ,1.223616,63.27815,22.92261,17.44423
sgpcmbeC1.c1,2005,0211:30:00,28 ,0.728773,72.86718,23.36952,20.42201
sgpcmbeC1.c1,2005,0212:30:00,28 ,1.120301,100.6006,28.31823, 23.1363
sgpcmbeC1.c1,2005,0213:30:00,28 ,1.132457,133.0867,25.62452, 25.7813
sgpcmbeC1.c1,2005,0214:30:00,28 ,1.551129, 70.3779,22.76245,18.32363
sgpcmbeC1.c1,2005,0215:30:00,28 ,3.035936,100.0057,25.31942,20.94292
sgpcmbeC1.c1,2005,0216:30:00,28 ,3.519045,49.77352,18.10302,12.55211
sgpcmbeC1.c1,2005,0217:30:00,28 ,2.873325,42.13736,15.82489,10.14067
sgpcmbeC1.c1,2005,0218:30:00,28 ,       0,8.831757,3.149235,2.732158
sgpcmbeC1.c1,2005,0219:30:00,28 ,       0,1.636137,0.351537,0.564946
sgpcmbeC1.c1,2005,0220:30:00,28 ,       0,1.632027,0.410005,0.618643
sgpcmbeC1.c1,2005,0221:30:00,28 ,       0,1.519046,0.362657,0.597236
sgpcmbeC1.c1,2005,0222:30:00,28 ,       0,1.701501,0.404836,0.601991
sgpcmbeC1.c1,2005,0223:30:00,28 ,       0,1.360033,0.213395,0.440809