[R] Read big data (>3G ) methods ?

Martin Morgan mtmorgan at fhcrc.org
Fri Apr 26 22:12:04 CEST 2013

On 04/26/2013 08:09 AM, Kevin Hao wrote:
> Hi all scientists,
> Recently, I am dealing with big data ( >3G  txt or csv format ) in my
> desktop (windows 7 - 64 bit version), but I can not read them faster,
> thought I search from internet. [define colClasses for read.table, cobycol
> and limma packages I have use them, but it is not so fast].

you mention limma; if this is sequence or microarray data then asking on the 
Bioconductor mailing list


(no subscription necessary) may be more appropriate, but you need to provide 
more information about what you want to do, e.g., a code chunk illustrating the 


> Could you share your methods to read big data to R faster?
> Though this is an odd question, but we need it really.
> Any suggest appreciates.
> Thank you very much.
> kevin
> 	[[alternative HTML version deleted]]
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