datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,05 0:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 2:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 4:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,05 5:30:00,29 ,       0,16.67626,4.175134, 5.22514
sgpcmbeC1.c1,1999,05 6:30:00,29 ,       0, 57.1986,22.02635,22.42913
sgpcmbeC1.c1,1999,05 7:30:00,29 ,0.000854, 125.285,32.93951,31.98035
sgpcmbeC1.c1,1999,05 8:30:00,29 ,       0,203.4717, 54.9666,54.18735
sgpcmbeC1.c1,1999,05 9:30:00,29 ,       0,214.2339, 84.2774,68.38854
sgpcmbeC1.c1,1999,0510:30:00,29 ,0.168058,315.4474,96.99701,85.06724
sgpcmbeC1.c1,1999,0511:30:00,29 ,0.424354, 257.447,101.0347, 92.8938
sgpcmbeC1.c1,1999,0512:30:00,29 ,0.207633,301.9146,102.9425, 106.783
sgpcmbeC1.c1,1999,0513:30:00,29 ,0.146823, 290.399,111.4593,96.22218
sgpcmbeC1.c1,1999,0514:30:00,29 ,0.296593,  298.08,120.8918,91.07857
sgpcmbeC1.c1,1999,0515:30:00,29 ,0.113513,225.3114,107.5372,70.13016
sgpcmbeC1.c1,1999,0516:30:00,29 ,0.035834,169.1169,79.25879,48.18518
sgpcmbeC1.c1,1999,0517:30:00,29 ,0.012062,89.08743,  48.106,23.27913
sgpcmbeC1.c1,1999,0518:30:00,29 ,       0,52.35418,32.68055,15.51993
sgpcmbeC1.c1,1999,0519:30:00,29 ,       0,11.36416,3.254552,3.698973
sgpcmbeC1.c1,1999,0520:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0521:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0522:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0523:30:00,28 ,       0,       0,       0,       0