datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,10 0:30:00,23 ,       0, 72.9137,15.23094,21.59145
sgpcmbeC1.c1,1997,10 1:30:00,23 ,       0, 287.116,26.50129,61.53582
sgpcmbeC1.c1,1997,10 2:30:00,24 ,       0,185.8017,21.58004,40.10661
sgpcmbeC1.c1,1997,10 3:30:00,24 ,       0,134.4209,24.84504,39.10693
sgpcmbeC1.c1,1997,10 4:30:00,24 ,       0,128.5334,17.28851,28.67124
sgpcmbeC1.c1,1997,10 5:30:00,23 ,       0,304.5809,30.09058,64.90766
sgpcmbeC1.c1,1997,10 6:30:00,24 ,       0,169.4528,27.60202,44.19833
sgpcmbeC1.c1,1997,10 7:30:00,23 ,       0,209.8911, 29.1429,49.45817
sgpcmbeC1.c1,1997,10 8:30:00,23 ,       0,153.8048,26.54077,39.66819
sgpcmbeC1.c1,1997,10 9:30:00,24 ,       0,216.0871,37.62447,61.54154
sgpcmbeC1.c1,1997,1010:30:00,25 ,       0,983.1502,70.65127, 198.815
sgpcmbeC1.c1,1997,1011:30:00,22 ,0.038857,209.0767,39.73752,62.28509
sgpcmbeC1.c1,1997,1012:30:00,23 ,0.729506,759.2978,74.13444,160.7495
sgpcmbeC1.c1,1997,1013:30:00,23 ,0.088345,1028.459,79.97454,213.9912
sgpcmbeC1.c1,1997,1014:30:00,23 ,       0,904.0836,70.42559,187.9476
sgpcmbeC1.c1,1997,1015:30:00,22 ,0.311633,304.8063,42.66341,78.71821
sgpcmbeC1.c1,1997,1016:30:00,23 ,1.363552,  1220.6,81.84374,254.6835
sgpcmbeC1.c1,1997,1017:30:00,21 ,1.199553,201.8808,20.62116,46.95196
sgpcmbeC1.c1,1997,1018:30:00,22 ,       0,135.0419,20.02389,34.66874
sgpcmbeC1.c1,1997,1019:30:00,22 ,       0,84.69837,11.57006, 22.1553
sgpcmbeC1.c1,1997,1020:30:00,22 ,       0,172.6393,15.50973,38.07522
sgpcmbeC1.c1,1997,1021:30:00,22 ,       0,75.65472,9.845256,17.68994
sgpcmbeC1.c1,1997,1022:30:00,22 ,       0,177.7413,18.96371,38.42616
sgpcmbeC1.c1,1997,1023:30:00,22 ,       0,68.51575,19.55074,24.83141