datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2004,09 0:30:00,30 ,       0,0.228871, 0.03267,0.058328
sgpcmbeC1.c1,2004,09 1:30:00,30 ,       0,0.451563, 0.06213,0.121144
sgpcmbeC1.c1,2004,09 2:30:00,30 ,       0,0.059615,0.006888,0.015963
sgpcmbeC1.c1,2004,09 3:30:00,30 ,       0,0.110824,0.012474,0.030358
sgpcmbeC1.c1,2004,09 4:30:00,30 ,       0,0.127511,0.008266,0.029024
sgpcmbeC1.c1,2004,09 5:30:00,30 ,       0,0.023376,0.001085,0.004503
sgpcmbeC1.c1,2004,09 6:30:00,30 ,0.002251,31.43324,11.73286,9.644522
sgpcmbeC1.c1,2004,09 7:30:00,30 ,0.040972,197.5075, 110.968,52.25557
sgpcmbeC1.c1,2004,09 8:30:00,30 , 0.39505,396.2159,271.8698,97.57779
sgpcmbeC1.c1,2004,09 9:30:00,30 ,110.4838,575.4262,412.5122,135.3145
sgpcmbeC1.c1,2004,0910:30:00,30 ,9.739624,717.2635,541.1522,164.7395
sgpcmbeC1.c1,2004,0911:30:00,30 ,19.82156,806.9912,587.9311,187.4192
sgpcmbeC1.c1,2004,0912:30:00,30 ,15.90057,842.6139,596.3111, 208.291
sgpcmbeC1.c1,2004,0913:30:00,30 ,22.55414,808.8789,519.2709,225.7797
sgpcmbeC1.c1,2004,0914:30:00,30 ,0.217377,713.7847,442.3162,210.3029
sgpcmbeC1.c1,2004,0915:30:00,30 , 0.01844,562.0967,334.7795,169.5543
sgpcmbeC1.c1,2004,0916:30:00,30 ,0.163704,377.5284,219.8528,108.2991
sgpcmbeC1.c1,2004,0917:30:00,30 ,1.336777,181.4684,84.76649,51.80741
sgpcmbeC1.c1,2004,0918:30:00,30 ,0.001619,26.21357, 6.54051,8.150241
sgpcmbeC1.c1,2004,0919:30:00,30 ,       0,0.207311,0.011495, 0.03972
sgpcmbeC1.c1,2004,0920:30:00,30 ,       0,0.119149,0.003972,0.021753
sgpcmbeC1.c1,2004,0921:30:00,30 ,       0,0.108715,0.011756, 0.03026
sgpcmbeC1.c1,2004,0922:30:00,30 ,       0,0.379294,0.024526,0.074918
sgpcmbeC1.c1,2004,0923:30:00,30 ,       0,0.779048,0.061372,0.171663