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

2010-07-13 Thread cstrato
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

[Rd] Severe memory problem using split()

2010-07-12 Thread cstrato
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 which has a size of 754KB only: ann -

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

2010-07-12 Thread Martin Morgan
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 which has a

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

2010-07-12 Thread cstrato
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 1.2MB for a

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

2010-07-12 Thread Martin Morgan
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.size(unlist(u2p)) 865176