datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,01 0:30:00,16 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 1:30:00,18 ,       0,1.360569,0.075587,0.320689
sgpcmbeC1.c1,2002,01 2:30:00,12 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 3:30:00,16 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 4:30:00,19 ,       0,0.380876,0.020046,0.087379
sgpcmbeC1.c1,2002,01 5:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 6:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,01 7:30:00,29 ,       0,3.770591,0.947916,1.124309
sgpcmbeC1.c1,2002,01 8:30:00,29 ,0.101078,105.5932,45.68943, 37.6389
sgpcmbeC1.c1,2002,01 9:30:00,29 , 0.05986,279.9573,131.7545,105.7024
sgpcmbeC1.c1,2002,0110:30:00,29 ,0.409111,426.9321,211.5342,155.8161
sgpcmbeC1.c1,2002,0111:30:00,28 ,0.602463,537.0054,277.9419,183.8066
sgpcmbeC1.c1,2002,0112:30:00,29 ,0.511948,581.9451,308.3275,203.5689
sgpcmbeC1.c1,2002,0113:30:00,29 ,0.941433,559.7405,330.4558, 196.165
sgpcmbeC1.c1,2002,0114:30:00,29 ,0.314049,472.9844,263.2675,174.7877
sgpcmbeC1.c1,2002,0115:30:00,29 , 0.23962,340.5278,181.3409, 119.875
sgpcmbeC1.c1,2002,0116:30:00,29 ,0.062035,172.5169,75.02028,60.91776
sgpcmbeC1.c1,2002,0117:30:00,29 ,       0,27.24837,7.477705, 8.39458
sgpcmbeC1.c1,2002,0118:30:00,29 ,       0,0.871304,0.031491,0.161706
sgpcmbeC1.c1,2002,0119:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0120:30:00,20 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0121:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0122:30:00,17 ,       0,       0,       0,       0
sgpcmbeC1.c1,2002,0123:30:00,17 ,       0,       0,       0,       0