datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2003,03 0:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,03 1:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,03 2:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,03 3:30:00,26 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,03 4:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,03 5:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,03 6:30:00,31 ,       0,20.08119,3.331932,6.342819
sgpcmbeC1.c1,2003,03 7:30:00,31 ,0.015975,60.56776,21.44866,23.39635
sgpcmbeC1.c1,2003,03 8:30:00,31 ,0.047157,110.9458,40.49807,33.75519
sgpcmbeC1.c1,2003,03 9:30:00,31 ,0.102783,138.3719,42.13424, 42.5606
sgpcmbeC1.c1,2003,0310:30:00,31 ,0.113852,219.2379,48.93809,58.10278
sgpcmbeC1.c1,2003,0311:30:00,31 ,0.075858,193.1785, 50.4337,59.86388
sgpcmbeC1.c1,2003,0312:30:00,31 ,0.130519,266.7791,56.51827,88.41629
sgpcmbeC1.c1,2003,0313:30:00,31 ,0.221089,202.4466,48.39016,60.07763
sgpcmbeC1.c1,2003,0314:30:00,31 ,0.254482,215.9281,64.60106, 66.1145
sgpcmbeC1.c1,2003,0315:30:00,31 , 0.06996,199.5888,63.28694,54.75105
sgpcmbeC1.c1,2003,0316:30:00,31 ,0.007291,166.0353,44.25052,36.74116
sgpcmbeC1.c1,2003,0317:30:00,31 ,       0,69.02614,33.24961,23.03046
sgpcmbeC1.c1,2003,0318:30:00,31 ,       0,29.31458,8.063635,8.689182
sgpcmbeC1.c1,2003,0319:30:00,31 ,       0,4.076722,0.208762,0.784255
sgpcmbeC1.c1,2003,0320:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0321:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0322:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2003,0323:30:00,26 ,       0,       0,       0,       0