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 , 0.15552, 10.0469,2.722151, 2.52634
sgpcmbeC1.c1,2003,12 8:30:00,31 ,0.000233,119.8917,51.57523,41.43826
sgpcmbeC1.c1,2003,12 9:30:00,31 , 0.00036,  274.09,145.0496,102.2101
sgpcmbeC1.c1,2003,1210:30:00,31 ,0.043118,396.9207,221.5904,159.9772
sgpcmbeC1.c1,2003,1211:30:00,31 ,0.064156,469.9794,256.0921,189.6564
sgpcmbeC1.c1,2003,1212:30:00,30 ,0.064087,490.3858,290.5244,197.9749
sgpcmbeC1.c1,2003,1213:30:00,31 , 0.10179,458.8379,249.9612,184.7993
sgpcmbeC1.c1,2003,1214:30:00,31 ,0.026482,373.3099,209.2252,  155.14
sgpcmbeC1.c1,2003,1215:30:00,31 ,       0, 240.948,133.9668,88.40229
sgpcmbeC1.c1,2003,1216:30:00,31 ,       0,90.10363,39.58441,28.51353
sgpcmbeC1.c1,2003,1217:30:00,31 ,0.133318,4.130841,1.712367,1.015447
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