about selecting bins in THnSparse

Hi Rooters,

I have a question about selecting bins in THnSparse. It is the following.

If I want to select only a certain range of a axis and do the projection of the
THnSparse, then I do
thnsparse->GetAxis(axisX)->SetRange(bin0, bin1); hh=(TH1D*)thnsparse->Projection(axisY);

But what if I want to selection discontinuous patches of bins, like e.g.  [bin0-bin1]+[bin4, bin5],
then is there a simple way to do the projection?

Many thanks!

best regards,
Xianguo

-- 
Xianguo Lu

Physikalisches Institut
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Philosophenweg 12
D-69120 Heidelberg

Tel:  +49-6221-549499