Extend big.char and bigmemory's big.matrix to support
larger-than-RAM data.frame-like objects in R.
Current package build status via use of
Travis CI:
The Travis CI build is failing because I haven't yet configured it to
install big.char from GitHub (it's probably only looking at CRAN).
You'll need big.char, first:
> require(devtools)
> install_github('big.char', 'jayemerson')
> install_github('big.data.frame', 'jayemerson')
> library(big.data.frame)
For the moment, don't do anything with factors. That is, the
big.data.frame is actually only storing columns of numeric or
character data (via big.matrix and big.char).
Rivisit this once big.factor is available.
Note that data frames always have row and column names, with subsetting preserving them (whether you like it or not). Need to consider this. I suppose a subset needs to be in-RAM, anyway.