Re: [Rd] Severe memory problem using split()

Dear Martin, Thank you for this explanation. Best regards Christian On 7/13/10 12:31 AM, Martin Morgan wrote: On 07/12/2010 03:00 PM, cstrato wrote: Dear Martin, Thank you, you are right, now I get: ann<- read.delim("Hu6800_ann.txt", stringsAsFactors=FALSE) object.size(ann) 2035952 bytes

Re: [Rd] Severe memory problem using split()

On 07/12/2010 03:00 PM, cstrato wrote: > Dear Martin, > > Thank you, you are right, now I get: > >> ann <- read.delim("Hu6800_ann.txt", stringsAsFactors=FALSE) >> object.size(ann) > 2035952 bytes >> u2p <- split(ann[,"ProbesetID"],ann[,"UNIT_ID"]) >> object.size(u2p) > 1207368 bytes >> object.si

Re: [Rd] Severe memory problem using split()

Dear Martin, Thank you, you are right, now I get: > ann <- read.delim("Hu6800_ann.txt", stringsAsFactors=FALSE) > object.size(ann) 2035952 bytes > u2p <- split(ann[,"ProbesetID"],ann[,"UNIT_ID"]) > object.size(u2p) 1207368 bytes > object.size(unlist(u2p)) 865176 bytes Nevertheless, a size of 1

Re: [Rd] Severe memory problem using split()

On 07/12/2010 01:45 PM, cstrato wrote: > Dear all, > > With great interest I followed the discussion: > https://stat.ethz.ch/pipermail/r-devel/2010-July/057901.html > since I have currently a similar problem: > > In a new R session (using xterm) I am importing a simple table > "Hu6800_ann.txt" wh