datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2000,12 0:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 1:30:00,12 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 2:30:00,12 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 3:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 4:30:00,15 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 5:30:00,23 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 6:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,12 7:30:00,30 ,0.937771,11.02768,5.932825,2.863031
sgpcmbeC1.c1,2000,12 8:30:00,30 ,5.096547,46.35464,17.02541,11.26085
sgpcmbeC1.c1,2000,12 9:30:00,30 ,2.482413,58.50769,19.06317,15.35695
sgpcmbeC1.c1,2000,1210:30:00,30 ,1.550485,57.92078,18.28076,16.67518
sgpcmbeC1.c1,2000,1211:30:00,29 ,1.060181,91.75531,27.13181,23.55662
sgpcmbeC1.c1,2000,1212:30:00,30 ,0.035459,75.67435,25.28815,22.49977
sgpcmbeC1.c1,2000,1213:30:00,29 ,0.474537,130.7344,23.27805,27.63964
sgpcmbeC1.c1,2000,1214:30:00,29 ,       0,75.75565,20.72342,20.93277
sgpcmbeC1.c1,2000,1215:30:00,29 ,2.644961,87.81155,17.58915,19.15365
sgpcmbeC1.c1,2000,1216:30:00,29 ,3.084052,27.32813,15.51795,7.203395
sgpcmbeC1.c1,2000,1217:30:00,29 ,       0,20.64396, 5.07499,3.982258
sgpcmbeC1.c1,2000,1218:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1219:30:00,21 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1220:30:00,18 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1221:30:00,11 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1222:30:00,9 ,       0,       0,       0,       0
sgpcmbeC1.c1,2000,1223:30:00,13 ,       0,       0,       0,       0