README.md

In gongliyu/csvfR:

csvfR

A pure R package to handle large csv file: split, merge, read/write row by row

Install

devtools::install_github("gongliyu/csvfR")

Usage

Read csv file row by row

library(csvfR)
reader <- CsvfReader$new("hello.csv")
x <- reader$readRows(n=2)
y <- reader$readRows(n=2)

write csv file row by row

library(csvfR)
writer <- CsvfWriter$new("hello.csv", row.names=F)
writer$writeRows(data.frame(a=1:2, b=c("hello","world"))
writer$writeRows(data.frame(a=3:4, b=c("hi","you"))
writer$close()

gongliyu/csvfR documentation built on May 21, 2019, 8:01 a.m.