datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,08 0:30:00,31 ,       0,0.035721,0.001152,0.006416
sgpcmbeC1.c1,2006,08 1:30:00,31 ,       0, 0.00092, 0.00003,0.000165
sgpcmbeC1.c1,2006,08 2:30:00,31 ,       0,0.017257, 0.00074,0.003231
sgpcmbeC1.c1,2006,08 3:30:00,31 ,       0,0.141836,0.006493,0.027062
sgpcmbeC1.c1,2006,08 4:30:00,31 ,       0,0.048838,0.001996,0.009003
sgpcmbeC1.c1,2006,08 5:30:00,31 ,       0,4.324189, 0.59413,0.886281
sgpcmbeC1.c1,2006,08 6:30:00,31 ,1.246614, 14.6552,8.124274,4.671338
sgpcmbeC1.c1,2006,08 7:30:00,31 ,0.589659,30.64255, 13.8599,7.606648
sgpcmbeC1.c1,2006,08 8:30:00,31 ,3.258687,31.27144,12.99751,6.766356
sgpcmbeC1.c1,2006,08 9:30:00,31 ,5.518345,38.41801,14.45633,8.966711
sgpcmbeC1.c1,2006,0810:30:00,31 ,3.809533,41.34037,16.72707,12.94879
sgpcmbeC1.c1,2006,0811:30:00,31 , 1.61048,54.16393,17.10444,16.29987
sgpcmbeC1.c1,2006,0812:30:00,31 ,0.651182,59.00012, 21.9085,16.67316
sgpcmbeC1.c1,2006,0813:30:00,31 ,1.660372,  59.193,28.75297,17.77169
sgpcmbeC1.c1,2006,0814:30:00,31 ,3.628165,60.80158,29.04615,15.71067
sgpcmbeC1.c1,2006,0815:30:00,31 , 1.52552,54.75304,27.05175,14.47786
sgpcmbeC1.c1,2006,0816:30:00,31 ,0.194968,39.67753,20.63147,10.40212
sgpcmbeC1.c1,2006,0817:30:00,31 ,0.319692,36.97837,15.13655,8.446174
sgpcmbeC1.c1,2006,0818:30:00,31 ,0.425011, 15.6546,9.003401,4.736935
sgpcmbeC1.c1,2006,0819:30:00,31 ,       0,6.553691,1.073818,1.609101
sgpcmbeC1.c1,2006,0820:30:00,31 ,       0,0.199504,0.006436,0.035832
sgpcmbeC1.c1,2006,0821:30:00,31 ,       0, 0.16155,0.006785,0.029979
sgpcmbeC1.c1,2006,0822:30:00,31 ,       0,0.111846,0.003935, 0.02011
sgpcmbeC1.c1,2006,0823:30:00,31 ,       0,0.121468,0.006241,0.024901