datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,08 0:30:00,3 ,       0,5.819988,2.521416,2.986811
sgpcmbeC1.c1,2005,08 1:30:00,3 ,       0,17.72199,6.369806,9.855724
sgpcmbeC1.c1,2005,08 2:30:00,4 ,       0,14.44237,3.716784,7.153194
sgpcmbeC1.c1,2005,08 3:30:00,4 ,       0,13.33726,3.437732,6.602565
sgpcmbeC1.c1,2005,08 4:30:00,3 ,       0,10.26278,3.648362,5.738404
sgpcmbeC1.c1,2005,08 5:30:00,6 ,       0,11.92137,2.121535,4.811781
sgpcmbeC1.c1,2005,08 6:30:00,6 ,       0,56.24974,10.18782,22.64552
sgpcmbeC1.c1,2005,08 7:30:00,4 ,       0,68.03207,17.12529,33.93857
sgpcmbeC1.c1,2005,08 8:30:00,2 , 1.47461,62.56965,32.02213,43.20072
sgpcmbeC1.c1,2005,08 9:30:00,2 ,1.479786,34.58112,18.03045,23.40618
sgpcmbeC1.c1,2005,0810:30:00,1 ,1.210834,1.210834,1.210834,       .
sgpcmbeC1.c1,2005,0811:30:00,1 ,1.460339,1.460339,1.460339,       .
sgpcmbeC1.c1,2005,0812:30:00,1 ,1.752252,1.752252,1.752252,       .
sgpcmbeC1.c1,2005,0813:30:00,1 ,1.837571,1.837571,1.837571,       .
sgpcmbeC1.c1,2005,0814:30:00,1 ,1.495995,1.495995,1.495995,       .
sgpcmbeC1.c1,2005,0815:30:00,1 ,1.736847,1.736847,1.736847,       .
sgpcmbeC1.c1,2005,0816:30:00,1 ,1.778315,1.778315,1.778315,       .
sgpcmbeC1.c1,2005,0817:30:00,2 ,0.900429,1.597321,1.248875,0.492777
sgpcmbeC1.c1,2005,0818:30:00,3 ,0.987919,54.82608,19.21887,30.83971
sgpcmbeC1.c1,2005,0819:30:00,3 ,1.012675,27.98747,10.21891,15.39139
sgpcmbeC1.c1,2005,0820:30:00,3 ,       0,1.209665,0.612087,0.604963
sgpcmbeC1.c1,2005,0821:30:00,4 ,       0,3.239457, 1.62398,1.327121
sgpcmbeC1.c1,2005,0822:30:00,4 ,       0,17.80114,5.574316,8.264076
sgpcmbeC1.c1,2005,0823:30:00,3 ,       0,1.598692,0.810427,0.799576