datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,07 0:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 2:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,07 5:30:00,31 ,       0,21.77891,11.88316,6.394268
sgpcmbeC1.c1,2003,07 6:30:00,31 ,13.85826,164.3506,118.9429,40.99675
sgpcmbeC1.c1,2003,07 7:30:00,31 ,56.58409,361.3838,293.5784,66.71185
sgpcmbeC1.c1,2003,07 8:30:00,31 ,156.2004,570.1957,476.9611,108.1453
sgpcmbeC1.c1,2003,07 9:30:00,31 ,285.3102,730.7621,648.6539,108.6855
sgpcmbeC1.c1,2003,0710:30:00,31 ,420.1933,875.8837,799.3145,112.1672
sgpcmbeC1.c1,2003,0711:30:00,31 ,383.9512, 964.627,867.6747,145.8005
sgpcmbeC1.c1,2003,0712:30:00,31 ,427.8607,1002.376,900.7102,130.7098
sgpcmbeC1.c1,2003,0713:30:00,31 ,408.6772,976.7963,851.7522,146.6389
sgpcmbeC1.c1,2003,0714:30:00,31 ,476.2824,898.5443,788.1112,100.9019
sgpcmbeC1.c1,2003,0715:30:00,31 ,334.5073,766.2789,666.7359,106.0072
sgpcmbeC1.c1,2003,0716:30:00,31 ,184.2971,583.5472,514.2024,94.71857
sgpcmbeC1.c1,2003,0717:30:00,31 ,168.1084,386.4572,323.2826,64.48703
sgpcmbeC1.c1,2003,0718:30:00,31 ,44.33831,224.9029,154.0498,33.98299
sgpcmbeC1.c1,2003,0719:30:00,31 ,4.781672, 48.4999, 22.5424,9.422386
sgpcmbeC1.c1,2003,0720:30:00,31 ,       0,0.368663,0.011892,0.066214
sgpcmbeC1.c1,2003,0721:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0722:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0723:30:00,31 ,       0,       0,       0,       0