Saves an object to a file descriptor
qsave_fd(x, fd,
preset = "high", algorithm = "zstd", compress_level = 4L,
shuffle_control = 15L, check_hash=TRUE)the object to serialize.
A file descriptor
One of "fast", "balanced" , "high" (default), "archive", "uncompressed" or "custom". See details.
Compression algorithm used: "lz4", "zstd", "lz4hc", "zstd_stream" or "uncompressed".
The compression level used (Default 1). For lz4, this number must be > 1 (higher is less compressed). For zstd, a number between -50 to 22 (higher is more compressed).
An integer setting the use of byte shuffle compression. A value between 0 and 15 (Default 3). See details.
Default TRUE, compute a hash which can be used to verify file integrity during serialization
the number of bytes serialized (returned invisibly)
This function serializes and compresses an R object to a stream using a file descriptor If your data is important, make sure you know what happens on the other side of the pipe. See examples for usage.