txt2hdd: argument path now accepts vectors and even
patterns. All files matching the pattern will be imported to the
hdd format.
txt2hdd: gains the arguments encoding and
locale.
txt2hdd: messages are more informative, in particular
import time is reported.
Minor bug fixes
Fixed a small bug in the function guess_col_types when
the data contained dates.
Other
update the maintainer’s email address
hdd version 0.1.0
(06-11-2019)
First version
This package is an effort to provide a simple way to deal with out
of memory data sets within R. The tasks does is to import and perfom
simple manipulations: like subsetting, creating new variables, etc.
As in other data base management systems (DBMS), the data is split
into several chunks that fit in memory, and operations are performed
“chunk-wise”. These operations are hidden to the user.
Why creating this package? First, it avoids having to switch to
alternative software like DBMS to deal with out of memory data sets (you
can also use DBMS in R but it is cumbersome). Second, it allows the user
to use the full power of R to create complex new variables. Finally, and
maybe most importantly, the syntax is very simple and requires little
effort from the user.