datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,08 0:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 1:30:00,28 ,       0,0.660655,0.023595,0.124852
sgpcmbeC1.c1,2006,08 2:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,08 5:30:00,31 ,       0,15.30024,2.636109,3.322021
sgpcmbeC1.c1,2006,08 6:30:00,31 ,4.455302,50.58249,32.98972,14.69041
sgpcmbeC1.c1,2006,08 7:30:00,31 ,3.908305,130.2028, 62.6373,30.05232
sgpcmbeC1.c1,2006,08 8:30:00,31 ,21.51254,162.6687,68.89168,31.55833
sgpcmbeC1.c1,2006,08 9:30:00,31 ,34.18016,229.9794,81.36155,46.90212
sgpcmbeC1.c1,2006,0810:30:00,31 ,32.10641,253.6553,96.97341,69.06053
sgpcmbeC1.c1,2006,0811:30:00,31 ,14.33346,345.8456,100.4633,92.92158
sgpcmbeC1.c1,2006,0812:30:00,31 , 5.29376,381.1107,125.6602,95.80674
sgpcmbeC1.c1,2006,0813:30:00,31 , 14.3106,370.3003,164.6889,100.7777
sgpcmbeC1.c1,2006,0814:30:00,31 ,27.11637,332.8611,159.6845,82.35298
sgpcmbeC1.c1,2006,0815:30:00,31 ,11.84845,274.7252,142.8072,71.34156
sgpcmbeC1.c1,2006,0816:30:00,31 ,2.542075,189.3969,103.6482,47.21543
sgpcmbeC1.c1,2006,0817:30:00,31 ,3.504982,141.3192, 67.9055,31.20932
sgpcmbeC1.c1,2006,0818:30:00,31 ,3.801699,62.27579,37.03454,16.88036
sgpcmbeC1.c1,2006,0819:30:00,31 ,       0,22.35172,5.387525,5.450814
sgpcmbeC1.c1,2006,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0821:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0822:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2006,0823:30:00,31 ,       0,       0,       0,       0