Updating a big.matrix filebacking.
For a file-backed big.matrix object, flush() forces
any modified information to be written to the file-backing.
flush(con) ## S4 method for signature 'big.matrix' flush(con)
con |
filebacked |
This function flushes any modified data (in RAM) of a file-backed
big.matrix to disk. This may be useful for
improving performance in cases where allowing the operating system to decide
on flushing creates a bottleneck (likely near the threshold of available RAM).
TRUE or FALSE (invisible), indicating whether or not the flush was successful.
John W. Emerson and Michael J. Kane
temp_dir = tempdir()
if (!dir.exists(temp_dir)) dir.create(temp_dir)
x <- big.matrix(nrow=3, ncol=3, backingfile='flushtest.bin',
descriptorfile='flushtest.desc', backingpath=temp_dir,
type='integer')
x[1,1] <- 0
flush(x)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.