datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2006,07 0:30:00,28 ,2.048206,5.544631,3.759854,0.954743
sgpcmbeC1.c1,2006,07 1:30:00,28 ,2.096581,5.369103,3.785885,0.943795
sgpcmbeC1.c1,2006,07 2:30:00,28 ,2.144649,  5.2698,3.774246,0.889671
sgpcmbeC1.c1,2006,07 3:30:00,28 ,2.204026,5.358816,3.809698,0.867588
sgpcmbeC1.c1,2006,07 4:30:00,28 ,2.347896,5.418943,3.834662,0.853519
sgpcmbeC1.c1,2006,07 5:30:00,28 ,2.292038,5.279529,3.797008,0.845277
sgpcmbeC1.c1,2006,07 6:30:00,28 ,2.236223,5.114363,3.760434,0.807384
sgpcmbeC1.c1,2006,07 7:30:00,29 ,2.332756,5.367657,3.805108,0.838431
sgpcmbeC1.c1,2006,07 8:30:00,30 ,2.435855,5.366739,3.776925,0.827252
sgpcmbeC1.c1,2006,07 9:30:00,29 ,2.496459,5.290136,3.820376,0.833482
sgpcmbeC1.c1,2006,0710:30:00,30 ,2.412953,5.637245,3.870155,0.856942
sgpcmbeC1.c1,2006,0711:30:00,30 , 2.41764,5.465745,3.886378, 0.81618
sgpcmbeC1.c1,2006,0712:30:00,30 ,2.393044,5.378304, 3.88722,0.826376
sgpcmbeC1.c1,2006,0713:30:00,30 ,2.405057, 5.34591,3.925749,0.825758
sgpcmbeC1.c1,2006,0714:30:00,29 ,2.357423,5.416365,3.950685,0.825904
sgpcmbeC1.c1,2006,0715:30:00,27 ,2.571701,5.742863,4.000619,0.900389
sgpcmbeC1.c1,2006,0716:30:00,28 ,2.476789,5.614426,4.022473,0.887066
sgpcmbeC1.c1,2006,0717:30:00,29 ,2.481884,5.632767,4.030087,0.837253
sgpcmbeC1.c1,2006,0718:30:00,29 ,2.525312, 5.99158,4.016072,0.881981
sgpcmbeC1.c1,2006,0719:30:00,29 ,2.271668,5.741225,3.949068,0.896527
sgpcmbeC1.c1,2006,0720:30:00,28 ,2.120852,5.323939,3.879894,0.885059
sgpcmbeC1.c1,2006,0721:30:00,28 , 2.05752,5.389219, 3.87183,0.937651
sgpcmbeC1.c1,2006,0722:30:00,28 ,2.046565,5.444893,3.825137,0.928329
sgpcmbeC1.c1,2006,0723:30:00,28 ,2.060875,5.666425,3.789248,0.927764