datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,05 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,05 5:30:00,31 ,       0,17.40587,7.880534,5.074024
sgpcmbeC1.c1,2001,05 6:30:00,31 ,       0,149.5597,53.88386,25.66886
sgpcmbeC1.c1,2001,05 7:30:00,30 ,0.542327,204.4361, 101.471,43.08215
sgpcmbeC1.c1,2001,05 8:30:00,30 ,65.55508,262.1445,143.3896,57.47871
sgpcmbeC1.c1,2001,05 9:30:00,31 , 78.5097,560.1846,194.3329, 116.697
sgpcmbeC1.c1,2001,0510:30:00,31 ,82.04627,687.4617,228.4297,144.8699
sgpcmbeC1.c1,2001,0511:30:00,31 ,37.88948,810.7941,245.1267,165.6193
sgpcmbeC1.c1,2001,0512:30:00,31 ,50.30096, 757.025,229.0294,148.5407
sgpcmbeC1.c1,2001,0513:30:00,31 ,26.95448,609.7892,218.0085,115.3121
sgpcmbeC1.c1,2001,0514:30:00,31 , 21.9337,610.3116,217.8615,120.7885
sgpcmbeC1.c1,2001,0515:30:00,31 ,3.421869,588.6053,201.5748,119.9361
sgpcmbeC1.c1,2001,0516:30:00,30 ,9.008265,310.9194,145.3554,73.09318
sgpcmbeC1.c1,2001,0517:30:00,30 ,15.88079,195.3055,100.1076,38.76415
sgpcmbeC1.c1,2001,0518:30:00,31 ,0.996278,89.82886,48.49857,20.80545
sgpcmbeC1.c1,2001,0519:30:00,31 ,       0,14.23406,5.258216,3.935248
sgpcmbeC1.c1,2001,0520:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0521:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0522:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0523:30:00,30 ,       0,       0,       0,       0