datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2005,10 0:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 1:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 2:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 3:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 5:30:00,22 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,10 6:30:00,31 ,       0,9.552488, 3.30608,2.574915
sgpcmbeC1.c1,2005,10 7:30:00,31 ,5.801244, 81.9833,41.15097,19.86702
sgpcmbeC1.c1,2005,10 8:30:00,31 ,35.86226,167.1262,87.48719,33.99834
sgpcmbeC1.c1,2005,10 9:30:00,31 ,55.90777,269.5153,125.7227,59.27293
sgpcmbeC1.c1,2005,1010:30:00,31 ,61.53713,346.2215, 159.408,80.93014
sgpcmbeC1.c1,2005,1011:30:00,31 ,61.90345,375.1965,160.1071,98.25119
sgpcmbeC1.c1,2005,1012:30:00,31 , 61.9181,371.6498,186.5533,111.7692
sgpcmbeC1.c1,2005,1013:30:00,31 ,42.14394, 370.189,176.6405,102.8077
sgpcmbeC1.c1,2005,1014:30:00,31 ,35.65271,289.6577,145.0349,77.78565
sgpcmbeC1.c1,2005,1015:30:00,31 ,22.07577,203.0132,104.6987,50.34093
sgpcmbeC1.c1,2005,1016:30:00,31 ,15.65007,163.5413,66.31907,33.12967
sgpcmbeC1.c1,2005,1017:30:00,31 ,7.576766,63.62867,19.10425,12.54735
sgpcmbeC1.c1,2005,1018:30:00,23 ,       0,4.064252,0.303304,0.864322
sgpcmbeC1.c1,2005,1019:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1020:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1021:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1022:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2005,1023:30:00,22 ,       0,       0,       0,       0