| qsave_fd {qs} | R Documentation |
Saves an object to a file descriptor
qsave_fd(x, fd, preset = "high", algorithm = "zstd", compress_level = 4L, shuffle_control = 15L, check_hash=TRUE)
x |
the object to serialize. |
fd |
A file descriptor |
preset |
One of "fast", "balanced" , "high" (default), "archive", "uncompressed" or "custom". See details. |
algorithm |
Compression algorithm used: "lz4", "zstd", "lz4hc", "zstd_stream" or "uncompressed". |
compress_level |
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). |
shuffle_control |
An integer setting the use of byte shuffle compression. A value between 0 and 15 (Default 15). See details. |
check_hash |
Default TRUE, compute a hash which can be used to verify file integrity during serialization |
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.
the number of bytes serialized (returned invisibly)