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 ,       0,0.000928,0.000077,0.000268
sgpcmbeC1.c1,2000,12 2:30:00,12 ,       0,0.000668,0.000056,0.000193
sgpcmbeC1.c1,2000,12 3:30:00,11 ,       0,0.026032,0.002367,0.007849
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 ,0.258785,6.877192,1.392405,1.713847
sgpcmbeC1.c1,2000,12 8:30:00,30 ,0.137894,111.2219,36.45704,39.15624
sgpcmbeC1.c1,2000,12 9:30:00,30 ,0.223831,259.1076,97.84421,103.8426
sgpcmbeC1.c1,2000,1210:30:00,30 , 0.18605,383.9379,166.9313,153.4913
sgpcmbeC1.c1,2000,1211:30:00,29 ,0.086319,446.1484,214.1297,185.3854
sgpcmbeC1.c1,2000,1212:30:00,30 ,       0,479.1572,205.0959,200.8257
sgpcmbeC1.c1,2000,1213:30:00,29 ,       0,448.7005, 203.222,182.2276
sgpcmbeC1.c1,2000,1214:30:00,29 ,       0,357.8345,169.2121,144.8925
sgpcmbeC1.c1,2000,1215:30:00,29 ,0.091957,223.4933,97.98037,93.13739
sgpcmbeC1.c1,2000,1216:30:00,29 ,       0,  77.217,27.58913,27.45137
sgpcmbeC1.c1,2000,1217:30:00,29 ,0.060578,1.497725,0.608391,0.413886
sgpcmbeC1.c1,2000,1218:30:00,29 ,       0, 0.05727,0.001975,0.010635
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 ,       0,0.000977,0.000089,0.000295
sgpcmbeC1.c1,2000,1222:30:00,9 ,       0,0.027672,0.004597,0.009767
sgpcmbeC1.c1,2000,1223:30:00,13 ,       0,       0,       0,       0