datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,09 0:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,09 1:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,09 2:30:00,28 ,       0,0.113686, 0.00406,0.021485
sgpcmbeC1.c1,1997,09 3:30:00,28 ,       0,0.514295,0.028677,0.102678
sgpcmbeC1.c1,1997,09 4:30:00,28 ,       0,0.969207,0.051009, 0.19471
sgpcmbeC1.c1,1997,09 5:30:00,28 ,       0,0.056098,0.005667,0.016677
sgpcmbeC1.c1,1997,09 6:30:00,28 ,2.004893,40.84683,16.31386,9.378107
sgpcmbeC1.c1,1997,09 7:30:00,29 ,11.23836,203.2944, 71.8478, 41.2727
sgpcmbeC1.c1,1997,09 8:30:00,28 ,32.86436,271.2176,129.0013,67.50493
sgpcmbeC1.c1,1997,09 9:30:00,28 ,51.48249,  327.92, 168.124,90.73243
sgpcmbeC1.c1,1997,0910:30:00,28 ,44.01713,441.7751,201.8422,123.6416
sgpcmbeC1.c1,1997,0911:30:00,28 ,64.54211,454.6563,225.5786, 122.804
sgpcmbeC1.c1,1997,0912:30:00,28 ,66.42507,469.2031,213.2732,125.4391
sgpcmbeC1.c1,1997,0913:30:00,28 ,66.62698,421.1362,213.2683,124.4831
sgpcmbeC1.c1,1997,0914:30:00,28 ,64.37833,415.6074,195.0263,106.6918
sgpcmbeC1.c1,1997,0915:30:00,27 ,55.10583,306.3667,150.3188,79.98433
sgpcmbeC1.c1,1997,0916:30:00,27 ,32.81068,181.3531,102.5299,44.27965
sgpcmbeC1.c1,1997,0917:30:00,27 ,10.81946, 118.169,57.77084,27.24847
sgpcmbeC1.c1,1997,0918:30:00,27 ,0.107624,31.06098,11.08652,8.419363
sgpcmbeC1.c1,1997,0919:30:00,27 ,       0,0.056872,0.004066,0.014659
sgpcmbeC1.c1,1997,0920:30:00,27 ,       0,0.046988, 0.00174,0.009043
sgpcmbeC1.c1,1997,0921:30:00,27 ,       0,0.052824,0.001956,0.010166
sgpcmbeC1.c1,1997,0922:30:00,27 ,       0,0.042893,0.001589,0.008255
sgpcmbeC1.c1,1997,0923:30:00,27 ,       0,       0,       0,       0