datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,11 0:30:00,21 ,       0,0.027846,0.001326,0.006077
sgpcmbeC1.c1,2005,11 1:30:00,23 ,       0,0.001345,0.000058, 0.00028
sgpcmbeC1.c1,2005,11 2:30:00,21 ,       0,0.885007,0.044151, 0.19278
sgpcmbeC1.c1,2005,11 3:30:00,23 ,       0,0.772979,0.039959,0.162664
sgpcmbeC1.c1,2005,11 4:30:00,23 ,       0,0.265835,0.011558, 0.05543
sgpcmbeC1.c1,2005,11 5:30:00,22 ,       0,0.136023,0.014032,0.039319
sgpcmbeC1.c1,2005,11 6:30:00,25 ,       0,0.736273,0.077916,0.203454
sgpcmbeC1.c1,2005,11 7:30:00,30 ,0.477741,15.59659,9.828061,4.201552
sgpcmbeC1.c1,2005,11 8:30:00,30 ,1.778402, 27.1945,14.91155,5.273067
sgpcmbeC1.c1,2005,11 9:30:00,30 ,1.592909,40.05676,13.52547, 7.29729
sgpcmbeC1.c1,2005,1110:30:00,30 ,2.814229,36.72654,14.66849, 10.9555
sgpcmbeC1.c1,2005,1111:30:00,30 ,2.142679,30.53515,7.395024,7.566821
sgpcmbeC1.c1,2005,1112:30:00,30 ,0.345729,45.86011,9.261195,13.00608
sgpcmbeC1.c1,2005,1113:30:00,30 ,2.595483,49.03099,12.47382,12.50105
sgpcmbeC1.c1,2005,1114:30:00,30 ,5.001948,40.81215, 13.1544,9.122958
sgpcmbeC1.c1,2005,1115:30:00,30 ,3.165588, 32.6396,14.58332,7.106457
sgpcmbeC1.c1,2005,1116:30:00,30 ,3.162186,21.22445,12.94492, 4.12723
sgpcmbeC1.c1,2005,1117:30:00,30 ,0.365456, 5.98288,2.728974,1.520607
sgpcmbeC1.c1,2005,1118:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1119:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1120:30:00,21 ,       0,0.106764,0.005084,0.023298
sgpcmbeC1.c1,2005,1121:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1122:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1123:30:00,22 ,       0,0.439153,0.021031,0.093523