datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,04 0:30:00,29 ,       0,0.758129,0.081323,0.199776
sgpcmbeC1.c1,2003,04 1:30:00,29 ,       0,1.258247,0.069289,0.239183
sgpcmbeC1.c1,2003,04 2:30:00,29 ,       0,0.477707,0.053396,0.130841
sgpcmbeC1.c1,2003,04 3:30:00,29 ,       0,0.386231,0.042941,0.103375
sgpcmbeC1.c1,2003,04 4:30:00,29 ,       0,0.688569, 0.05155,0.146557
sgpcmbeC1.c1,2003,04 5:30:00,30 ,       0,0.861206,0.204326,0.199046
sgpcmbeC1.c1,2003,04 6:30:00,30 ,0.002605,62.29926,21.89739,18.46581
sgpcmbeC1.c1,2003,04 7:30:00,30 , 0.04649,247.0321,126.0103,85.95203
sgpcmbeC1.c1,2003,04 8:30:00,30 ,0.222298,455.0313,252.4225, 169.805
sgpcmbeC1.c1,2003,04 9:30:00,30 ,0.260033,643.2109,377.3515,239.1526
sgpcmbeC1.c1,2003,0410:30:00,30 ,0.672089,790.7614,463.6337,298.3841
sgpcmbeC1.c1,2003,0411:30:00,30 ,0.294235,881.9059,525.2865,319.1449
sgpcmbeC1.c1,2003,0412:30:00,30 ,1.062851,910.3766,497.0109,357.4559
sgpcmbeC1.c1,2003,0413:30:00,30 , 1.51635,878.2869,506.1224,323.3054
sgpcmbeC1.c1,2003,0414:30:00,30 ,0.078617,779.0283,413.6441,294.5191
sgpcmbeC1.c1,2003,0415:30:00,30 ,0.085106,631.7408,361.3164,217.7387
sgpcmbeC1.c1,2003,0416:30:00,30 ,0.288109,441.0841,271.9475,142.3124
sgpcmbeC1.c1,2003,0417:30:00,30 , 0.03495,233.6794,135.1147,69.91288
sgpcmbeC1.c1,2003,0418:30:00,30 ,       0,55.76189,22.82838,16.16394
sgpcmbeC1.c1,2003,0419:30:00,30 ,       0,3.662571,  1.0158,0.943434
sgpcmbeC1.c1,2003,0420:30:00,30 ,       0,2.274071,0.366079,0.642722
sgpcmbeC1.c1,2003,0421:30:00,30 ,       0,2.171284,0.286325,0.599533
sgpcmbeC1.c1,2003,0422:30:00,30 ,       0, 2.53661,0.205012,0.540906
sgpcmbeC1.c1,2003,0423:30:00,29 ,       0,1.795489,0.159587,0.455959