datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,08 0:30:00,31 ,       0,0.087827,0.002833,0.015774
sgpcmbeC1.c1,1997,08 1:30:00,31 ,       0,0.112205,0.005418,0.022202
sgpcmbeC1.c1,1997,08 2:30:00,31 ,       0,0.276325,0.011053,0.050652
sgpcmbeC1.c1,1997,08 3:30:00,31 ,       0,0.162777, 0.01202,0.038527
sgpcmbeC1.c1,1997,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,08 5:30:00,31 ,       0,5.876935,1.259593,1.466628
sgpcmbeC1.c1,1997,08 6:30:00,31 ,1.461669, 99.9389,49.55336, 28.8913
sgpcmbeC1.c1,1997,08 7:30:00,31 ,11.84172,292.8578,180.0698,97.47584
sgpcmbeC1.c1,1997,08 8:30:00,31 ,36.85226,494.1527,336.3072,153.0438
sgpcmbeC1.c1,1997,08 9:30:00,31 ,32.29783, 682.225,496.6622,198.9526
sgpcmbeC1.c1,1997,0810:30:00,31 ,75.22912,894.9491,623.1576, 207.135
sgpcmbeC1.c1,1997,0811:30:00,31 ,59.22303,909.3472,723.4982,216.1925
sgpcmbeC1.c1,1997,0812:30:00,31 ,65.59589,1009.063, 749.087,243.0583
sgpcmbeC1.c1,1997,0813:30:00,31 ,75.92192,926.1944, 701.519,251.8257
sgpcmbeC1.c1,1997,0814:30:00,31 ,25.84644,830.1281,640.2434,205.4726
sgpcmbeC1.c1,1997,0815:30:00,31 ,39.89227,690.5054, 523.002,176.2206
sgpcmbeC1.c1,1997,0816:30:00,31 ,68.63363,520.5606,391.1229,121.9237
sgpcmbeC1.c1,1997,0817:30:00,31 ,29.67033,343.8049,232.4772,76.99408
sgpcmbeC1.c1,1997,0818:30:00,31 ,14.47838,130.2018,  76.845,26.72069
sgpcmbeC1.c1,1997,0819:30:00,31 ,       0,12.68386, 4.25818,3.754383
sgpcmbeC1.c1,1997,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0823:30:00,31 ,       0,0.082046,0.002647,0.014736