On 15/06/2020 1:24 p.m., Ivan Krylov wrote:
On Mon, 15 Jun 2020 12:52:20 -0400
Duncan Murdoch <murdoch.dun...@gmail.com> wrote:
maybe someone else can suggest how to read an object from
the .rdb file using R code. Internally R uses C code for this.
This function seems to work for me:
# filename: the .rdb file
# offset, size: the pair of values from the .rdx
# type: 'gzip' if $compressed is TRUE, 'bzip2' for 2, 'xz' for 3
readRDB <- function(filename, offset, size, type = 'gzip') {
f <- file(filename, 'rb')
on.exit(close(f))
seek(f, offset + 4)
unserialize(memDecompress(readBin(f, 'raw', size - 4), type))
}
Thanks, though it didn't work for me. I get
Error in unserialize(memDecompress(readBin(f, "raw", size - 4), type)) :
no restore method available
on every object I tried. However, maybe Dan will have better luck.
Duncan Murdoch
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