datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,09 0:30:00,19 ,1.044645,3.949927,2.540948, 0.95508
sgpcmbeC1.c1,2001,09 1:30:00,19 ,1.027237,4.018746,2.513459, 0.96378
sgpcmbeC1.c1,2001,09 2:30:00,18 ,1.019089,4.042013,  2.5618,0.972102
sgpcmbeC1.c1,2001,09 3:30:00,18 ,0.985735,4.051662,2.573552,0.982947
sgpcmbeC1.c1,2001,09 4:30:00,18 ,0.993349,4.183705,2.600693,1.027866
sgpcmbeC1.c1,2001,09 5:30:00,18 ,0.954894, 4.55787,2.640068, 1.10526
sgpcmbeC1.c1,2001,09 6:30:00,16 ,0.969325,4.677191,2.682078,1.115188
sgpcmbeC1.c1,2001,09 7:30:00,16 ,0.959318,5.135326,2.707846,1.192779
sgpcmbeC1.c1,2001,09 8:30:00,23 ,  0.9232,4.846083,2.564675,1.192666
sgpcmbeC1.c1,2001,09 9:30:00,23 ,0.894395,4.771052,2.667458,1.161897
sgpcmbeC1.c1,2001,0910:30:00,23 ,0.869612,4.620872,2.638782,1.151693
sgpcmbeC1.c1,2001,0911:30:00,23 ,0.862562,4.624228,2.609073,1.116082
sgpcmbeC1.c1,2001,0912:30:00,22 ,0.907407,4.536198,2.627354,1.056632
sgpcmbeC1.c1,2001,0913:30:00,20 ,0.869895,4.646056,2.522858, 1.03276
sgpcmbeC1.c1,2001,0914:30:00,21 , 0.84646,4.814518,2.608903,1.097577
sgpcmbeC1.c1,2001,0915:30:00,22 ,0.772756,4.916602,2.542353,1.188042
sgpcmbeC1.c1,2001,0916:30:00,22 ,0.766172,4.862321,2.547413,1.159477
sgpcmbeC1.c1,2001,0917:30:00,21 ,0.783877,4.389011,2.452743,1.091008
sgpcmbeC1.c1,2001,0918:30:00,21 ,0.896291,4.253536,  2.4848,1.030116
sgpcmbeC1.c1,2001,0919:30:00,21 , 0.86639,4.393839,2.467148,1.014576
sgpcmbeC1.c1,2001,0920:30:00,21 ,0.867188,4.308438,2.483686,1.038504
sgpcmbeC1.c1,2001,0921:30:00,21 ,0.902853, 4.26123,2.452631,1.040006
sgpcmbeC1.c1,2001,0922:30:00,19 ,0.873326,4.297435,2.384878,0.985369
sgpcmbeC1.c1,2001,0923:30:00,19 ,0.883565,4.115164,2.402102,1.008257