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

[Dirk Eddelbuettel]

On 21 April 2015 at 11:01, ogami musashi wrote:
| Benchmarks against fread shows the code i use returns a lighter object 
| (a simple matrix) and thus processes faster.
| 
| reading 400 16,2Mb files with a 6 cores took 177,949 seconds with the 
| cpp function and 228.231 seconds with fread.
| 
| Neadless to say both are considerably faster than read.table (took 21669 
| seconds!) and read_csv from readr package (took about the same).
| 
| I know it would be better to contribute an rcpp gallery but for now i 
| just have time to post the code here:

I would definitely like a Rcpp Gallery post showing that code this simple
beats all the competitors, ideally with chart of the benchmark results  :)

I guess knowing your dimensions does indeed help a great deal. 

Dirk

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