[R] Importing BSQ/BIP/BIL files into R

[Jonathan Greenberg]

I was hoping I could get some help with an import question.  I work with
remote sensing imagery which commonly comes in binary form in various
interleaving formats (byte interleaved by line, by pixel, etc..).  These
files are 2d spatial x B bands in size, and I want to be able to extract the
band values from various pixels (so each line of data into R would be one
pixel x B bands).

What's the easiest way of importing this type of data?  These files are
often massive (4 - 16gb), so is there a way of having R read the lines of
the data as I am running the process, rather than trying to load the whole
image into memory at once?  Thanks!  For those of you with remote sensing
experience, I'm using RSI's ENVI package.

--j

-- 
Jonathan Greenberg
Graduate Group in Ecology, U.C. Davis
http://www.cstars.ucdavis.edu/~jongreen
http://www.cstars.ucdavis.edu
AIM: jgrn307 or jgrn3007
MSN: jgrn307 at msn.com or jgrn3007 at msn.com