datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,12 0:30:00,30 ,       0,2.785071,1.536978,0.780592
sgpcmbeC1.c1,2003,12 1:30:00,29 ,       0,2.859039, 1.58828,0.743504
sgpcmbeC1.c1,2003,12 2:30:00,31 ,       0,2.943768,1.486128,0.906333
sgpcmbeC1.c1,2003,12 3:30:00,31 ,       0,2.891138,1.433271,0.863983
sgpcmbeC1.c1,2003,12 4:30:00,31 ,       0,2.854509,1.384184,0.889362
sgpcmbeC1.c1,2003,12 5:30:00,30 ,       0,2.956235,1.310897,0.911251
sgpcmbeC1.c1,2003,12 6:30:00,30 ,       0,3.042897,1.349167,0.940076
sgpcmbeC1.c1,2003,12 7:30:00,31 ,0.665325,17.47813,6.979037,4.498112
sgpcmbeC1.c1,2003,12 8:30:00,31 ,15.89155,151.1224,93.16696,38.66555
sgpcmbeC1.c1,2003,12 9:30:00,31 ,28.55182,317.9108,227.2365,87.44916
sgpcmbeC1.c1,2003,1210:30:00,31 ,51.38048,449.4418,328.4679, 135.472
sgpcmbeC1.c1,2003,1211:30:00,31 ,27.29791,529.7245,382.9766,160.4934
sgpcmbeC1.c1,2003,1212:30:00,31 ,31.42764,572.8676, 411.244,177.6118
sgpcmbeC1.c1,2003,1213:30:00,31 ,19.57042,512.7773,372.3033,163.7941
sgpcmbeC1.c1,2003,1214:30:00,31 ,27.48571,428.0488,310.6096,135.6304
sgpcmbeC1.c1,2003,1215:30:00,31 ,19.85806,310.2191,205.2364,  89.429
sgpcmbeC1.c1,2003,1216:30:00,31 ,3.066306,120.8584,72.76843,33.06264
sgpcmbeC1.c1,2003,1217:30:00,31 ,0.133318,7.344991,3.356272,  1.8119
sgpcmbeC1.c1,2003,1218:30:00,30 ,       0,2.676375,1.387233,0.748408
sgpcmbeC1.c1,2003,1219:30:00,29 ,       0,2.442843, 1.47328,0.716825
sgpcmbeC1.c1,2003,1220:30:00,29 ,       0,2.989868,1.353231,0.775847
sgpcmbeC1.c1,2003,1221:30:00,28 ,       0,2.804404,1.311193,0.851328
sgpcmbeC1.c1,2003,1222:30:00,28 ,       0,2.998269,1.308202,0.886948
sgpcmbeC1.c1,2003,1223:30:00,29 ,       0,2.600333,1.516182,0.747991