datastream, year, month, tod,n, min, max, mean, std
twpcmbeC1.c1,1998,03 0:30:00,30 ,       0,0.334719,0.132707,0.101365
twpcmbeC1.c1,1998,03 1:30:00,30 ,       0, 0.29708,0.090913,0.096372
twpcmbeC1.c1,1998,03 2:30:00,30 ,       0,0.304218,0.090658,0.103741
twpcmbeC1.c1,1998,03 3:30:00,30 ,       0,0.307592,0.081764,0.089495
twpcmbeC1.c1,1998,03 4:30:00,30 ,       0,0.303662,0.056653, 0.08508
twpcmbeC1.c1,1998,03 5:30:00,30 ,       0,0.293409,0.047202,0.094068
twpcmbeC1.c1,1998,03 6:30:00,29 ,5.085619,35.95934,19.30829,6.983461
twpcmbeC1.c1,1998,03 7:30:00,30 ,3.440175,  57.187,25.43052,16.41743
twpcmbeC1.c1,1998,03 8:30:00,30 , 3.81287, 84.0519,35.77847,20.35054
twpcmbeC1.c1,1998,03 9:30:00,30 ,5.314287,140.4586, 54.8665,32.78434
twpcmbeC1.c1,1998,0310:30:00,29 ,1.987571,130.8402,60.19595,31.80257
twpcmbeC1.c1,1998,0311:30:00,29 ,4.628333,163.6025,73.41806,39.88293
twpcmbeC1.c1,1998,0312:30:00,30 , 3.50044,168.3491,72.07925,40.19442
twpcmbeC1.c1,1998,0313:30:00,29 ,12.33884,157.1947,76.67882,36.73762
twpcmbeC1.c1,1998,0314:30:00,29 , 18.6906,131.9255,64.20397,26.26395
twpcmbeC1.c1,1998,0315:30:00,29 ,6.963261,97.89215,52.59339,21.25518
twpcmbeC1.c1,1998,0316:30:00,29 ,7.591563,  68.657,36.64149,16.21127
twpcmbeC1.c1,1998,0317:30:00,29 ,10.16366,48.65953,25.84681,9.806923
twpcmbeC1.c1,1998,0318:30:00,29 ,2.641519,15.05079, 8.36382,3.450747
twpcmbeC1.c1,1998,0319:30:00,29 ,       0,0.302039,0.072307,0.104034
twpcmbeC1.c1,1998,0320:30:00,29 ,       0,0.283613,0.098613,0.100785
twpcmbeC1.c1,1998,0321:30:00,29 ,       0,0.309383,0.114833,0.089682
twpcmbeC1.c1,1998,0322:30:00,29 ,       0, 0.30517,0.124591,0.093483
twpcmbeC1.c1,1998,0323:30:00,29 ,       0,0.361201,0.126243,0.090828