[R] question about brushing in rggobi

[chao83]

Hi,

I tried to use ggobi to display my data, and use the brush to select some
data and calculate a particular value for the data points in the brush, then
some points need to change the colour according to the particular values.
Does anyone knows the way that I can change the colour of some of the points
without redraw my current plot and reset the colour to default when the
brush moves on? 

Thanks A LOT!
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