Re: [R] bigmemory: Using backing file as alternate to write.big.matrix

OK, did a test where I did both - wrote a ~6Mx58 double matrix as a .txt file (write.big.matrix), but also left the backing file + descriptor file as-is (rather than deleting it as I usually do). Opened a different R session. Compared contents of first 100 rows of both, they seem identical. Size-wi

[R] bigmemory: Using backing file as alternate to write.big.matrix

Hi, Does the backing file of a big.matrix store the contents of entire matrix? Or does it store the portion of it that is not stored in RAM? In other words, can the backing file be treated as a file containing the matrix's full data? I have been writing my big.matrix objects to disk (write.big.mat