datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,12 0:30:00,22 ,       0,0.194981,0.014386,0.047923
sgpcmbeC1.c1,2002,12 1:30:00,26 ,       0,0.198425,0.016459,0.048737
sgpcmbeC1.c1,2002,12 2:30:00,25 ,       0, 2.65222,0.126821,0.530054
sgpcmbeC1.c1,2002,12 3:30:00,23 ,       0,0.164535,0.012913,0.041557
sgpcmbeC1.c1,2002,12 4:30:00,29 ,       0,0.233051,0.021545,0.060326
sgpcmbeC1.c1,2002,12 5:30:00,30 ,       0,2.875362,0.153503,0.588872
sgpcmbeC1.c1,2002,12 6:30:00,31 ,       0,0.383013,0.040442,0.103466
sgpcmbeC1.c1,2002,12 7:30:00,31 ,       0,20.51681,5.646701,4.671322
sgpcmbeC1.c1,2002,12 8:30:00,31 ,2.120877,162.5958,76.18739,44.01629
sgpcmbeC1.c1,2002,12 9:30:00,31 ,2.406842, 323.933,204.3787,102.8382
sgpcmbeC1.c1,2002,1210:30:00,31 ,50.24292,467.2479,314.8985,147.4861
sgpcmbeC1.c1,2002,1211:30:00,31 ,64.51975,555.7126,375.5813,164.7172
sgpcmbeC1.c1,2002,1212:30:00,31 ,39.08184,582.8782,408.6303,179.8146
sgpcmbeC1.c1,2002,1213:30:00,31 ,36.32188,537.1727,367.8017,163.7075
sgpcmbeC1.c1,2002,1214:30:00,31 ,36.52691,468.4027,301.1325,133.7196
sgpcmbeC1.c1,2002,1215:30:00,31 ,13.17431,291.4496,183.4294,90.58244
sgpcmbeC1.c1,2002,1216:30:00,31 ,6.839679,125.2731,67.60723,36.21029
sgpcmbeC1.c1,2002,1217:30:00,31 ,0.095888,10.33961,3.842917,2.978684
sgpcmbeC1.c1,2002,1218:30:00,31 ,       0,1.994979,0.251959,0.524349
sgpcmbeC1.c1,2002,1219:30:00,31 ,       0,1.744145,0.173771,0.418912
sgpcmbeC1.c1,2002,1220:30:00,28 ,       0,2.490104,0.098459,0.469869
sgpcmbeC1.c1,2002,1221:30:00,29 ,       0, 2.92345,0.194135,0.633469
sgpcmbeC1.c1,2002,1222:30:00,28 ,       0,0.646983,0.047803,0.156095
sgpcmbeC1.c1,2002,1223:30:00,27 ,       0,1.159206,0.046109,0.222654