datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,05 0:30:00,31 ,0.422355,24.93742,4.521009,5.982402
sgpcmbeC1.c1,2001,05 1:30:00,31 , 0.46572,18.21556, 3.96338,  4.1405
sgpcmbeC1.c1,2001,05 2:30:00,31 ,0.349481,  16.778,4.032145,4.827433
sgpcmbeC1.c1,2001,05 3:30:00,31 , 0.38046,14.95942,3.596015,3.802158
sgpcmbeC1.c1,2001,05 4:30:00,31 ,0.359262, 16.7563,3.496582, 4.24103
sgpcmbeC1.c1,2001,05 5:30:00,31 ,0.333585,17.25428,3.665373,4.316457
sgpcmbeC1.c1,2001,05 6:30:00,31 ,0.623469,26.64831, 4.86022,6.175972
sgpcmbeC1.c1,2001,05 7:30:00,31 ,1.339968,21.50919,5.393762,4.721183
sgpcmbeC1.c1,2001,05 8:30:00,31 ,0.827534,18.33816, 4.53425,4.801126
sgpcmbeC1.c1,2001,05 9:30:00,31 ,0.530371,16.12011,3.892841, 3.35511
sgpcmbeC1.c1,2001,0510:30:00,31 ,0.558941,13.66778,4.713566,3.782041
sgpcmbeC1.c1,2001,0511:30:00,31 , 1.09515,15.00666,3.904698,3.142642
sgpcmbeC1.c1,2001,0512:30:00,31 ,0.907999,11.79438,3.721505,2.624678
sgpcmbeC1.c1,2001,0513:30:00,31 ,0.661935, 13.0062, 4.26379,3.169887
sgpcmbeC1.c1,2001,0514:30:00,31 ,  0.8331,17.66229,6.073157,4.968345
sgpcmbeC1.c1,2001,0515:30:00,31 ,0.994265,16.83597,5.600312,4.384685
sgpcmbeC1.c1,2001,0516:30:00,31 ,0.978671,17.29964,4.703279,3.983407
sgpcmbeC1.c1,2001,0517:30:00,31 ,0.691008, 11.7582,4.191505,3.202652
sgpcmbeC1.c1,2001,0518:30:00,31 ,0.563294,17.65742,4.301162,3.901419
sgpcmbeC1.c1,2001,0519:30:00,31 ,0.845768,11.58813,3.966578,3.314806
sgpcmbeC1.c1,2001,0520:30:00,31 ,0.820171,11.35312,2.643364,2.129732
sgpcmbeC1.c1,2001,0521:30:00,31 ,0.434932,20.42615,4.173649, 4.69984
sgpcmbeC1.c1,2001,0522:30:00,31 , 0.41791,20.76866,4.402285,5.204212
sgpcmbeC1.c1,2001,0523:30:00,31 ,0.407448,20.84788,3.178524,4.255019