[R] Handling large dataset & dataframe

Gabor Grothendieck ggrothendieck at gmail.com
Mon Apr 24 20:08:36 CEST 2006


You just need the much smaller cross product matrix X'X and vector X'Y so you
can build those up as you read the data in in chunks.


On 4/24/06, Sachin J <sachinj.2006 at yahoo.com> wrote:
> Hi,
>
>  I have a dataset consisting of 350,000 rows and 266 columns.  Out of 266 columns 250 are dummy variable columns. I am trying to read this data set into R dataframe object but unable to do it due to memory size limitations (object size created is too large to handle in R).  Is there a way to handle such a large dataset in R.
>
>  My PC has 1GB of RAM, and 55 GB harddisk space running windows XP.
>
>  Any pointers would be of great help.
>
>  TIA
>  Sachin
>
>
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