fwrite: Fast write.table/textConnection substitute

In scidb: An R Interface to SciDB

Description

Conversions are vectorized and the entire output is buffered in memory and written in one shot. Great option for replacing writing to a textConnection (much much faster). Not such a great option for writing to files, marginal difference from write.table and obviously much greater memory use.

Usage

fwrite(
  x,
  file = stdout(),
  sep = "\t",
  format = paste(rep("%s", ncol(x)), collapse = sep)
)

Arguments

x	a data frame
file	a connection or return to return character output directly (fast)
sep	column separator
format	optional fprint-style column format specifyer

Value

Use for the side effect of writing to the connection returning NULL, or return a character value when file=return.

scidb documentation built on Aug. 12, 2020, 5:08 p.m.