datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,04 0:30:00,29 ,0.011877,0.526678, 0.06485,0.101559
sgpcmbeC1.c1,2007,04 1:30:00,29 ,0.011846,0.278499,0.045042,0.057992
sgpcmbeC1.c1,2007,04 2:30:00,29 ,0.012583,0.381966,0.055026,0.074105
sgpcmbeC1.c1,2007,04 3:30:00,29 ,0.014478,0.540136,0.060371,0.103238
sgpcmbeC1.c1,2007,04 4:30:00,29 ,0.014207,0.319547, 0.04328,0.056941
sgpcmbeC1.c1,2007,04 5:30:00,29 ,0.014278,0.158394,0.044139,0.042056
sgpcmbeC1.c1,2007,04 6:30:00,28 ,0.011321,  0.1998,0.046313, 0.05086
sgpcmbeC1.c1,2007,04 7:30:00,29 ,0.011996,0.244162,0.045958,0.056498
sgpcmbeC1.c1,2007,04 8:30:00,29 ,0.013251,0.280432,0.043282,0.053199
sgpcmbeC1.c1,2007,04 9:30:00,29 ,0.014912,0.144592,0.035598,0.027522
sgpcmbeC1.c1,2007,0410:30:00,29 ,0.016303,0.182626, 0.04595,0.039969
sgpcmbeC1.c1,2007,0411:30:00,29 , 0.01577,0.113072,0.042089,0.025373
sgpcmbeC1.c1,2007,0412:30:00,30 ,0.017109,0.271357,0.056012,0.058282
sgpcmbeC1.c1,2007,0413:30:00,30 ,0.014961,0.163075,0.054103,0.039081
sgpcmbeC1.c1,2007,0414:30:00,29 , 0.01598, 0.29426,0.060596,0.060009
sgpcmbeC1.c1,2007,0415:30:00,28 ,0.018969,0.270161,0.056471, 0.05297
sgpcmbeC1.c1,2007,0416:30:00,28 ,0.017158,0.251843,0.058974,0.052508
sgpcmbeC1.c1,2007,0417:30:00,28 , 0.01583,0.257454,0.046889, 0.04961
sgpcmbeC1.c1,2007,0418:30:00,28 ,0.014498,0.197654,0.051801,0.046833
sgpcmbeC1.c1,2007,0419:30:00,29 ,0.015031, 0.37112, 0.05315,0.073319
sgpcmbeC1.c1,2007,0420:30:00,29 ,0.012442,0.348846,0.044962,0.062631
sgpcmbeC1.c1,2007,0421:30:00,29 ,0.013372,0.414851,0.052921,0.081761
sgpcmbeC1.c1,2007,0422:30:00,29 ,0.013158,0.372979,0.047771,0.066851
sgpcmbeC1.c1,2007,0423:30:00,29 ,0.013508,0.408726,0.068659, 0.10261