datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,09 0:30:00,30 ,       0,0.151667,0.008618,0.028979
sgpcmbeC1.c1,2007,09 1:30:00,30 ,       0,0.031357,0.001128,0.005727
sgpcmbeC1.c1,2007,09 2:30:00,30 ,       0,0.147153,0.011227,0.037335
sgpcmbeC1.c1,2007,09 3:30:00,30 ,       0,0.002476,0.000083,0.000452
sgpcmbeC1.c1,2007,09 4:30:00,30 ,       0,0.049528,0.001651,0.009042
sgpcmbeC1.c1,2007,09 5:30:00,30 ,       0, 0.12022,0.007788,0.025709
sgpcmbeC1.c1,2007,09 6:30:00,30 ,       0,11.01975,5.943951,3.268302
sgpcmbeC1.c1,2007,09 7:30:00,30 ,1.591798,25.57774,12.95907,6.224103
sgpcmbeC1.c1,2007,09 8:30:00,30 ,1.774243, 33.8831,15.60353,8.835084
sgpcmbeC1.c1,2007,09 9:30:00,30 ,6.379147, 35.4875,14.48727,9.669467
sgpcmbeC1.c1,2007,0910:30:00,30 ,3.687537,45.58727,13.89575,11.21098
sgpcmbeC1.c1,2007,0911:30:00,30 ,1.306261,53.58501,18.73545, 15.7517
sgpcmbeC1.c1,2007,0912:30:00,30 ,0.887277,53.28617, 20.5831,17.38844
sgpcmbeC1.c1,2007,0913:30:00,30 ,2.076133, 54.3339,24.19448,17.36669
sgpcmbeC1.c1,2007,0914:30:00,30 , 4.56898,51.64063,21.21842,14.24048
sgpcmbeC1.c1,2007,0915:30:00,30 ,4.086009,47.07654,17.31022,11.24904
sgpcmbeC1.c1,2007,0916:30:00,30 ,8.859797,33.88779,14.76095,5.950608
sgpcmbeC1.c1,2007,0917:30:00,30 ,3.904074,18.97627,11.89683,4.154099
sgpcmbeC1.c1,2007,0918:30:00,30 ,       0,12.91962,4.164095,3.210798
sgpcmbeC1.c1,2007,0919:30:00,30 ,       0,0.025494, 0.00085,0.004655
sgpcmbeC1.c1,2007,0920:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0921:30:00,30 ,       0,0.062514,0.002084,0.011413
sgpcmbeC1.c1,2007,0922:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,0923:30:00,30 ,       0,0.054469,0.001816,0.009945