datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,08 0:30:00,31 ,       0, 0.61479,0.019832, 0.11042
sgpcmbeC1.c1,1997,08 1:30:00,31 ,       0, 0.79341,0.039407,0.159657
sgpcmbeC1.c1,1997,08 2:30:00,31 ,       0,1.210765,0.053569,0.229447
sgpcmbeC1.c1,1997,08 3:30:00,31 ,       0,0.791216,0.067355,0.210312
sgpcmbeC1.c1,1997,08 4:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,08 5:30:00,31 ,       0,8.433576,2.379092,2.069956
sgpcmbeC1.c1,1997,08 6:30:00,31 ,1.971185,51.59013,30.68676, 17.1108
sgpcmbeC1.c1,1997,08 7:30:00,31 ,6.663353,103.4238, 49.8632,25.13146
sgpcmbeC1.c1,1997,08 8:30:00,31 ,6.002709,179.4706,68.39697,34.50458
sgpcmbeC1.c1,1997,08 9:30:00,31 ,8.167082,238.4778,86.45235,57.65618
sgpcmbeC1.c1,1997,0810:30:00,31 ,16.92194,325.2141,118.9313,86.86895
sgpcmbeC1.c1,1997,0811:30:00,31 ,13.20371,304.4973,128.6189,96.19009
sgpcmbeC1.c1,1997,0812:30:00,31 , 4.02499, 319.274,117.8068,104.1946
sgpcmbeC1.c1,1997,0813:30:00,31 ,12.38343, 317.138,116.1451, 101.119
sgpcmbeC1.c1,1997,0814:30:00,31 ,10.82436,280.1387,107.5177,77.70024
sgpcmbeC1.c1,1997,0815:30:00,31 ,17.26467,204.3857,  98.557,60.02893
sgpcmbeC1.c1,1997,0816:30:00,31 ,14.40284,193.0531,85.88058,41.58881
sgpcmbeC1.c1,1997,0817:30:00,31 ,  9.4193,136.1102,  62.435,26.01263
sgpcmbeC1.c1,1997,0818:30:00,31 ,3.335384,61.79605,41.45605,12.66051
sgpcmbeC1.c1,1997,0819:30:00,31 ,       0,14.75648,6.254061,4.471242
sgpcmbeC1.c1,1997,0820:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0821:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0822:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,0823:30:00,31 ,       0,0.518907,0.016739,0.093198