datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,10 0:30:00,31 ,       0,0.050522, 0.00163,0.009074
sgpcmbeC1.c1,1997,10 1:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 2:30:00,31 ,       0,0.073745,0.002379,0.013245
sgpcmbeC1.c1,1997,10 3:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,10 6:30:00,31 ,       0,10.18094,3.328311,3.166436
sgpcmbeC1.c1,1997,10 7:30:00,31 ,8.131318,63.08171,35.64619,15.63478
sgpcmbeC1.c1,1997,10 8:30:00,31 ,17.85364,193.5156,75.43079,33.54329
sgpcmbeC1.c1,1997,10 9:30:00,31 ,19.62805,234.6205,103.2191,51.23073
sgpcmbeC1.c1,1997,1010:30:00,31 ,58.20776,254.4751,132.6868,59.26055
sgpcmbeC1.c1,1997,1011:30:00,31 ,58.78901,356.0779,144.2343,75.21618
sgpcmbeC1.c1,1997,1012:30:00,31 ,65.70171, 309.334,130.2095, 56.3887
sgpcmbeC1.c1,1997,1013:30:00,31 ,32.76983,331.4859,148.4116,81.75793
sgpcmbeC1.c1,1997,1014:30:00,31 ,58.34725,256.3806,133.7414,57.64468
sgpcmbeC1.c1,1997,1015:30:00,31 ,37.54033,214.5726,106.9993,44.05566
sgpcmbeC1.c1,1997,1016:30:00,31 ,15.84199,123.8362,64.82861,27.34382
sgpcmbeC1.c1,1997,1017:30:00,31 ,2.437742,103.0824,24.61083,19.79624
sgpcmbeC1.c1,1997,1018:30:00,31 ,       0,7.149301,0.677561,1.427794
sgpcmbeC1.c1,1997,1019:30:00,31 ,       0,0.357334,0.011527,0.064179
sgpcmbeC1.c1,1997,1020:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,1021:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,1022:30:00,31 ,       0,0.534832,0.017253,0.096059
sgpcmbeC1.c1,1997,1023:30:00,31 ,       0,0.186834,0.006027,0.033556