Re: [Rd] combining large list of data.frames

2012-04-24 Thread Cole Beck
Thanks Patrick, this is a nice solution. Regarding a patch I'm inclined to believe you're correct, though it is certainly something to consider. Cheers, Cole On 04/20/2012 07:55 PM, Patrick Aboyoun wrote: Cole, Bioconductor's high throughput sequencing infrastructure package IRanges contains

Re: [Rd] combining large list of data.frames

2012-04-20 Thread Patrick Aboyoun
Cole, Bioconductor's high throughput sequencing infrastructure package IRanges contains code that may be useful for speeding up base::rbind.data.frame. I've extracted the salient bits from that rbind method, but left the corner case handling code out. IRanges's rbind method took the approach of

[Rd] combining large list of data.frames

2012-04-19 Thread Cole Beck
It's normal for me to create a list of data.frames and then use do.call('rbind', list(...)) to create a single data.frame. However, I've noticed as the size of the list grows large, it is perhaps better to do this in chunks. As an example here's a list of 20,000 similar data.frames. # creat