[R-sig-Geo] WriteRaster as Float

[diamant zebrat]

Hello,
I am working with R processing Meteosat imagery, which mean a lot of images
every day, and thus a lot of available storage space
It looks like the write raster function of the raster package only allows
to write a Geotiff as integer or as double. I only need float precision, so
I don't need a double as the resulting file gets too big. Is there any way
to store a geotiff with float precision?
Thank you
Zebrat

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