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 ,0.699329,14.29679,5.704895,3.855997
sgpcmbeC1.c1,2000,12 8:30:00,30 ,10.09717,153.7155,79.73276,43.76792
sgpcmbeC1.c1,2000,12 9:30:00,30 ,32.52736,319.8527,  199.98,90.30013
sgpcmbeC1.c1,2000,1210:30:00,30 , 35.1213,456.8818, 305.179,135.7245
sgpcmbeC1.c1,2000,1211:30:00,30 , 39.3122,533.5041,379.3951,150.9198
sgpcmbeC1.c1,2000,1212:30:00,30 ,45.78498,553.1754,385.7243,162.0392
sgpcmbeC1.c1,2000,1213:30:00,29 ,32.70822,540.4211,367.8121,155.2234
sgpcmbeC1.c1,2000,1214:30:00,29 ,       0,427.9288, 294.085,135.6386
sgpcmbeC1.c1,2000,1215:30:00,29 ,13.74334,284.1057,180.1037,91.58766
sgpcmbeC1.c1,2000,1216:30:00,29 ,4.803365,122.1811,69.04532,33.48176
sgpcmbeC1.c1,2000,1217:30:00,29 ,0.084605,11.89488, 3.78462,2.768551
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