[R-sig-Geo] where is my raster stack? filename="" and inMemory=FALSE

[Hugo Costa]

Dear list,

I imported a raster stack and made some processing (crop, reclassify). I
can plot the stack and all looks fine. However, I don't know any more where
the file is. Namely

fromDisk(raster) retrieves FALSE
filename(raster) retrieves ""
inMemory(raster) retrieves FALSE
hasValues(raster) retrieves TRUE

printing out the raster gives me this:
class       : RasterStack
dimensions  : 7041, 7221, 50843061, 11  (nrow, ncol, ncell, nlayers)
resolution  : 0.00015, 0.00015  (x, y)
extent      : -10.04175, -8.9586, 37.972, 39.02815  (xmin, xmax, ymin, ymax)
coord. ref. : +proj=longlat +datum=WGS84 +no_defs +ellps=WGS84
+towgs84=0,0,0
names       : X10, X20, X30, X40, X50, X60, X70, X80, X90, X100, layer
min values  :   0,   0,   0,   0,   0,   0,   0,   0,   0,    0,     0
max values  :   1,   1,   1,   1,   0,   1,   0,   1,   1,    0,     1

I want to do everything in memory, but now I need to use gdalwarp, and
don't know how to define the argument srcfile. I can write my stack to
somewhere using writeRaster and get a filename, but that is too slow for my
needs and I'm looking for an alternative.

Thank you
Hugo

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