datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,01 0:30:00,21 ,       0,0.331927,0.015806,0.072432
sgpcmbeC1.c1,2007,01 1:30:00,20 ,       0, 1.52205,0.111515,0.367749
sgpcmbeC1.c1,2007,01 2:30:00,17 ,       0,1.568036,0.197591,0.485625
sgpcmbeC1.c1,2007,01 3:30:00,17 ,       0,2.224092, 0.25304,0.714776
sgpcmbeC1.c1,2007,01 4:30:00,13 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,01 5:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,01 6:30:00,22 ,       0,1.298933,0.061326, 0.27663
sgpcmbeC1.c1,2007,01 7:30:00,31 ,       0,4.456131,0.840534,1.264489
sgpcmbeC1.c1,2007,01 8:30:00,31 ,       0, 103.342,38.68928,37.40949
sgpcmbeC1.c1,2007,01 9:30:00,31 , 0.00021,273.0177,121.8867,105.0693
sgpcmbeC1.c1,2007,0110:30:00,31 ,       0,433.1865,199.6763, 172.261
sgpcmbeC1.c1,2007,0111:30:00,31 ,0.000572,542.1013,  270.61,205.4712
sgpcmbeC1.c1,2007,0112:30:00,31 ,  0.0009,593.1758,311.8494,227.5422
sgpcmbeC1.c1,2007,0113:30:00,31 ,0.057877, 561.077,302.5057, 212.721
sgpcmbeC1.c1,2007,0114:30:00,31 ,0.001663, 463.806,249.9831,182.0541
sgpcmbeC1.c1,2007,0115:30:00,31 ,       0,333.7826,166.5295,129.4185
sgpcmbeC1.c1,2007,0116:30:00,31 ,       0,165.5902,66.49227,  61.374
sgpcmbeC1.c1,2007,0117:30:00,31 ,       0,25.81827,7.244969,9.155396
sgpcmbeC1.c1,2007,0118:30:00,27 ,       0,0.757487,0.108882,0.223959
sgpcmbeC1.c1,2007,0119:30:00,25 ,       0,0.943918,0.075347,0.240786
sgpcmbeC1.c1,2007,0120:30:00,20 ,       0,0.327746,0.016387,0.073286
sgpcmbeC1.c1,2007,0121:30:00,22 ,       0,0.774404,0.067651,0.219164
sgpcmbeC1.c1,2007,0122:30:00,19 ,       0,1.982984, 0.20953,0.594692
sgpcmbeC1.c1,2007,0123:30:00,20 ,       0,1.393069,0.092933,0.319007