datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,12 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 1:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 3:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 5:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 6:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,12 7:30:00,31 ,       0,12.67108,3.268148,3.176546
sgpcmbeC1.c1,1999,12 8:30:00,31 ,0.019982, 49.1301, 25.3469,16.96641
sgpcmbeC1.c1,1999,12 9:30:00,31 ,0.050475,102.2843,36.19077,28.16583
sgpcmbeC1.c1,1999,1210:30:00,31 ,0.139972,109.6514,38.40123,23.88929
sgpcmbeC1.c1,1999,1211:30:00,31 ,0.077909,172.8226,36.17131,41.19031
sgpcmbeC1.c1,1999,1212:30:00,31 ,0.065778,185.9564,34.63191,56.04185
sgpcmbeC1.c1,1999,1213:30:00,31 ,0.062695,173.7949,42.70281,49.10015
sgpcmbeC1.c1,1999,1214:30:00,31 ,0.062428,120.6512,40.78405,28.57118
sgpcmbeC1.c1,1999,1215:30:00,31 , 0.03783, 89.8896, 31.8773,20.66865
sgpcmbeC1.c1,1999,1216:30:00,31 ,       0,60.99341,27.97471,18.72596
sgpcmbeC1.c1,1999,1217:30:00,31 ,       0,5.971285,1.672637,1.879144
sgpcmbeC1.c1,1999,1218:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1219:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1220:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1221:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1222:30:00,31 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,1223:30:00,29 ,       0,       0,       0,       0