datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1998,10 0:30:00,31 ,       0,1.943295,0.353648,0.417423
sgpcmbeC1.c1,1998,10 1:30:00,31 ,       0,1.114872,0.237366,0.287389
sgpcmbeC1.c1,1998,10 2:30:00,31 ,       0,1.424427, 0.31773, 0.32252
sgpcmbeC1.c1,1998,10 3:30:00,31 ,       0,1.607053,0.288061,0.371954
sgpcmbeC1.c1,1998,10 4:30:00,31 ,       0,1.397155,0.222461,0.313332
sgpcmbeC1.c1,1998,10 5:30:00,31 ,       0,1.078314, 0.24667,0.267971
sgpcmbeC1.c1,1998,10 6:30:00,31 ,0.776124,12.99435,5.006214,3.579562
sgpcmbeC1.c1,1998,10 7:30:00,31 ,6.299628,158.1424,76.50767,41.67004
sgpcmbeC1.c1,1998,10 8:30:00,31 ,19.71504, 363.415,212.3448,108.9465
sgpcmbeC1.c1,1998,10 9:30:00,31 ,23.29494,542.0729,331.9696,  175.18
sgpcmbeC1.c1,1998,1010:30:00,31 ,12.72935,676.6224,413.5287,229.1868
sgpcmbeC1.c1,1998,1011:30:00,31 ,37.87997,782.7814,481.5102,245.3191
sgpcmbeC1.c1,1998,1012:30:00,31 ,55.65485,774.5512,505.2529,245.8103
sgpcmbeC1.c1,1998,1013:30:00,31 ,48.74355,729.2675,473.7834,209.2071
sgpcmbeC1.c1,1998,1014:30:00,31 , 44.2893,623.7679,389.7494,197.8286
sgpcmbeC1.c1,1998,1015:30:00,31 ,19.45411,466.8031,278.7392,149.5268
sgpcmbeC1.c1,1998,1016:30:00,31 ,8.044203,274.0799,152.3751,85.12665
sgpcmbeC1.c1,1998,1017:30:00,31 ,2.311406,74.61578,35.82127, 21.6382
sgpcmbeC1.c1,1998,1018:30:00,31 ,       0,7.832827,1.215961,1.429507
sgpcmbeC1.c1,1998,1019:30:00,31 ,       0, 2.14802,0.612956,0.481345
sgpcmbeC1.c1,1998,1020:30:00,31 ,0.007885,2.101669,0.594723,0.533301
sgpcmbeC1.c1,1998,1021:30:00,31 ,0.000774,1.705906,0.509887,0.497693
sgpcmbeC1.c1,1998,1022:30:00,31 ,       0,2.539704,0.463279,0.528139
sgpcmbeC1.c1,1998,1023:30:00,31 ,       0,1.982255,0.484393,0.514465