# demo reduceMean, which averages all the elements in a dimension.

ds= getDataSet('http://cdaweb.gsfc.nasa.gov/pub/data/polar/hydra/hyd_h0/2000/po_h0_hyd_20000110_v01.cdf?ELECTRON_DIFFERENTIAL_ENERGY_FLUX')
ds.putProperty( QDataSet.VALID_MIN, 0. )
ds1= reduceMean( ds, 1 )
plot(ds1)
