[Rcpp-devel] Read csv and export object in R

[Dirk Eddelbuettel]

On 20 April 2015 at 12:01, ogami musashi wrote:
| Problem is..i have 400 object of 16,5 Mb each. and it take about 6 hours 
| to reimport in R! I use the readr package as this is the fastest base 
| function in R.

a) readr != base R

b) fread in package data.table is considered the fastest reader function

| I adapted a C++ code to use Rcpp, it compiles but when using it it 
| crashes R:

I fear you may have to debug that yourself.  As for speed, you won't be able
to beat fread which has been optimised for this for years and uses mmap and
other tricks.

Dirk

-- 
http://dirk.eddelbuettel.com | @eddelbuettel | edd at debian.org