datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2002,04 0:30:00,27 ,       0,586.8234,  54.059,144.5554
sgpcmbeC1.c1,2002,04 1:30:00,26 ,       0,443.5577,51.46569,123.4658
sgpcmbeC1.c1,2002,04 2:30:00,26 ,       0,439.8649,58.82959,131.2969
sgpcmbeC1.c1,2002,04 3:30:00,24 ,       0,654.6911,76.20386,170.3188
sgpcmbeC1.c1,2002,04 4:30:00,25 ,       0,1339.522,113.9004,303.8482
sgpcmbeC1.c1,2002,04 5:30:00,24 ,       0,542.7598,50.82842,117.3245
sgpcmbeC1.c1,2002,04 6:30:00,24 ,       0,444.6813,65.37388,119.2593
sgpcmbeC1.c1,2002,04 7:30:00,26 ,       0, 569.559, 73.5203,129.5303
sgpcmbeC1.c1,2002,04 8:30:00,25 ,       0,506.8967,70.85368, 132.533
sgpcmbeC1.c1,2002,04 9:30:00,29 ,       0,  474.26,105.3854,151.2915
sgpcmbeC1.c1,2002,0410:30:00,29 ,       0,571.0237, 104.345,165.6383
sgpcmbeC1.c1,2002,0411:30:00,30 ,       0,527.4686,76.85396,138.0423
sgpcmbeC1.c1,2002,0412:30:00,30 ,0.011684,841.1831,104.8648,208.9703
sgpcmbeC1.c1,2002,0413:30:00,29 ,       0,508.5208,72.27619,122.8597
sgpcmbeC1.c1,2002,0414:30:00,29 , 0.00419,385.4609,60.08054,103.1298
sgpcmbeC1.c1,2002,0415:30:00,29 , 0.01272,331.6848,52.16377,91.37992
sgpcmbeC1.c1,2002,0416:30:00,29 ,0.049019,710.6703,60.58732,138.4531
sgpcmbeC1.c1,2002,0417:30:00,29 ,0.042565, 624.891,60.68256,132.1331
sgpcmbeC1.c1,2002,0418:30:00,29 ,0.127778,802.4989,68.37515, 162.169
sgpcmbeC1.c1,2002,0419:30:00,29 , 0.02241,1327.009,87.26707,253.2633
sgpcmbeC1.c1,2002,0420:30:00,28 ,0.037644,700.3377,61.06696,152.8195
sgpcmbeC1.c1,2002,0421:30:00,29 ,0.124987,1436.822,108.8543,301.2964
sgpcmbeC1.c1,2002,0422:30:00,26 ,0.032536,  602.46,49.09799,127.9599
sgpcmbeC1.c1,2002,0423:30:00,27 ,       0,486.9928,59.64801,136.4911