qs2 (version 0.1.5)

qd_read: qd_read

Description

Reads an object that was saved to disk in the qdata format.

Usage

qd_read(file,
         use_alt_rep = qopt("use_alt_rep"),
         validate_checksum = qopt("validate_checksum"),
         nthreads = qopt("nthreads"))

Value

The object stored in file.

Arguments

file

The file name/path.

use_alt_rep

Use ALTREP when reading in string data (the initial value is FALSE).

validate_checksum

Whether to validate the stored checksum in the file (the initial value is FALSE).

nthreads

The number of threads to use when reading data (the initial value is 1L).

Examples

x <- data.frame(int = sample(1e3, replace=TRUE),
         num = rnorm(1e3),
         char = sample(state.name, 1e3, replace=TRUE),
         stringsAsFactors = FALSE)
myfile <- tempfile()
qd_save(x, myfile)
x2 <- qd_read(myfile)
identical(x, x2) # returns TRUE