datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,11 0:30:00,28 ,       0,0.967539,0.034555,0.182848
sgpcmbeC1.c1,1998,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 2:30:00,28 ,       0,0.345724,0.012347,0.065336
sgpcmbeC1.c1,1998,11 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 4:30:00,29 ,       0,0.304006,0.010483,0.056452
sgpcmbeC1.c1,1998,11 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,11 6:30:00,29 ,       0,1.237808,0.127483,0.332325
sgpcmbeC1.c1,1998,11 7:30:00,29 ,3.441525,30.01654,11.30311,5.945561
sgpcmbeC1.c1,1998,11 8:30:00,29 ,4.031846,38.17743,13.27579, 10.0588
sgpcmbeC1.c1,1998,11 9:30:00,29 ,1.940483,71.06844,14.92913,15.88058
sgpcmbeC1.c1,1998,1110:30:00,29 ,0.517938, 92.9067, 18.6784,23.68892
sgpcmbeC1.c1,1998,1111:30:00,29 ,0.741996,53.30857,16.02407,15.55168
sgpcmbeC1.c1,1998,1112:30:00,29 ,0.686427,68.65898,18.80861,19.67687
sgpcmbeC1.c1,1998,1113:30:00,29 ,0.815981,57.20003,16.38011,17.43052
sgpcmbeC1.c1,1998,1114:30:00,29 ,1.341599,79.26495,20.10802,19.77759
sgpcmbeC1.c1,1998,1115:30:00,29 ,0.854823,60.13902,14.56763,13.66575
sgpcmbeC1.c1,1998,1116:30:00,29 ,3.209885,32.09755,13.38332,7.789731
sgpcmbeC1.c1,1998,1117:30:00,30 ,       0,9.401713,4.507296,2.544884
sgpcmbeC1.c1,1998,1118:30:00,29 ,       0,1.999928,0.082506,0.375906
sgpcmbeC1.c1,1998,1119:30:00,29 ,       0,2.174984,0.083748,0.404948
sgpcmbeC1.c1,1998,1120:30:00,29 ,       0,1.203586,0.052699,0.229402
sgpcmbeC1.c1,1998,1121:30:00,29 ,       0,0.475512,0.029221,0.110138
sgpcmbeC1.c1,1998,1122:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1998,1123:30:00,28 ,       0,1.348485,0.053937, 0.25554