datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,01 0:30:00,8 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 1:30:00,9 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 2:30:00,8 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 3:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 4:30:00,14 ,       0, 3.87307,0.276648,1.035121
sgpcmbeC1.c1,2001,01 5:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,01 7:30:00,31 ,       0,3.723046,0.820956,0.988881
sgpcmbeC1.c1,2001,01 8:30:00,31 ,0.056674,107.7727,44.81596,38.76069
sgpcmbeC1.c1,2001,01 9:30:00,31 ,0.173042,285.1755,129.1432,109.6181
sgpcmbeC1.c1,2001,0110:30:00,31 ,0.200588,434.9256,206.8004,174.1241
sgpcmbeC1.c1,2001,0111:30:00,31 ,0.340866,542.1567,264.5656,216.4814
sgpcmbeC1.c1,2001,0112:30:00,31 ,       0, 586.717,274.3322,240.7491
sgpcmbeC1.c1,2001,0113:30:00,31 ,0.061012,568.5658,268.1516,223.4706
sgpcmbeC1.c1,2001,0114:30:00,31 ,0.011902,490.9615,239.1891,176.9122
sgpcmbeC1.c1,2001,0115:30:00,31 ,0.058647, 358.836,166.5987,128.8745
sgpcmbeC1.c1,2001,0116:30:00,31 ,       0,189.7181,72.00432,63.84626
sgpcmbeC1.c1,2001,0117:30:00,31 ,0.000385,32.63754,7.112909,9.097238
sgpcmbeC1.c1,2001,0118:30:00,30 ,       0,0.032798,0.001093,0.005988
sgpcmbeC1.c1,2001,0119:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0120:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0121:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0122:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0123:30:00,10 ,       0,       0,       0,       0