datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,11 0:30:00,30 ,       0,0.015015,0.000501,0.002741
sgpcmbeC1.c1,1999,11 1:30:00,30 ,       0,0.003981,0.000133,0.000727
sgpcmbeC1.c1,1999,11 2:30:00,30 ,       0,0.122747,0.004092, 0.02241
sgpcmbeC1.c1,1999,11 3:30:00,30 ,       0,0.027411,0.000914,0.005004
sgpcmbeC1.c1,1999,11 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,11 5:30:00,30 ,       0,0.155437,0.005181,0.028379
sgpcmbeC1.c1,1999,11 6:30:00,30 ,       0,0.618826,0.048092,0.140008
sgpcmbeC1.c1,1999,11 7:30:00,30 ,0.593747,11.18445,7.973418,2.735806
sgpcmbeC1.c1,1999,11 8:30:00,30 ,1.987497,16.23666,10.96965,2.423735
sgpcmbeC1.c1,1999,11 9:30:00,30 , 2.86981,17.82973,8.315446,2.359971
sgpcmbeC1.c1,1999,1110:30:00,30 ,3.831642,24.42032,6.816983,4.857371
sgpcmbeC1.c1,1999,1111:30:00,30 ,1.405146,24.45337,5.241619,7.330941
sgpcmbeC1.c1,1999,1112:30:00,30 ,0.479876,36.93367,5.518406,10.17922
sgpcmbeC1.c1,1999,1113:30:00,30 ,1.884148,29.94973,6.343651,7.150385
sgpcmbeC1.c1,1999,1114:30:00,30 ,3.991506,26.44545,8.836415,6.003601
sgpcmbeC1.c1,1999,1115:30:00,30 ,  0.6925,23.96483,10.18912, 3.82484
sgpcmbeC1.c1,1999,1116:30:00,30 ,0.635047,17.11658,10.11844,3.213068
sgpcmbeC1.c1,1999,1117:30:00,30 ,       0,6.822415,2.438012,1.471286
sgpcmbeC1.c1,1999,1118:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1119:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1120:30:00,30 ,       0,0.047764,0.002096,0.009056
sgpcmbeC1.c1,1999,1121:30:00,30 ,       0,0.047495,0.002797,0.010744
sgpcmbeC1.c1,1999,1122:30:00,30 ,       0,0.141021,0.006687,0.027603
sgpcmbeC1.c1,1999,1123:30:00,30 ,       0,0.018797,0.000627,0.003432