[GRASSLIST:1083] Reproject raster data - weighted average

[David Orme]

Hi,

I have some floating point raster data sets in a lat/long location. I 
want to reproject these data into a cylindrical equal area location. 
Obviously I can do this using `r.proj'  but I want the values of cells 
in the reprojected map to be calculated as averages of the 
corresponding cells in the original projection, weighted by their 
relative area in the new grid cells.

Is there any way to do this in Grass?

Thanks,
David