Re: [R] question on write.table

From: Peter Dalgaard <p.dalgaard_at_biostat.ku.dk>
Date: Fri 16 Dec 2005 - 10:30:30 EST

Weiwei Shi <helprhelp@gmail.com> writes:

> Hi,
> I have a question on write.table:
> I have a data.frame called t7 as below:
>
> > dim(t7)
> [1] 14015184 6
> > t7[1:5,]
> uci uce par line graphical.forms stems
> 1 0 0 0 0 active activ
> 2 0 0 0 0 policy polici
> 3 0 0 0 0 wc PC
> 4 0 0 0 0 eff elf
> 5 0 0 0 0 icn ICC
>
> I want to write the contents of t7 into a file, which can be read
> later by a python program. So I used:
> write.table(t7,file="map")
>
> , which of course takes forever.
>
> Is there another way to make it finish in a standable time?

If the only purpose is to write something that python can read, might it not be more expedient to teach python some other data format that R can generate easily? E.g. dump() or save(..., ascii=TRUE) ?  

> I have to use old R version since I need to use ttda package.
> > version
> _
> platform x86_64-unknown-linux-gnu
> arch x86_64
> os linux-gnu
> system x86_64, linux-gnu
> status
> major 2
> minor 0.1
> year 2004
> month 11
> day 15
> language R
>
> My linux box has 8 G memory.
>
> Thank you for your help!
>
> Weiwei
> --
> Weiwei Shi, Ph.D
>
> "Did you always know?"
> "No, I did not. But I believed..."
> ---Matrix III
>
> ______________________________________________
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> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>

-- 
   O__  ---- Peter Dalgaard             ุster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)                  FAX: (+45) 35327907

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Received on Fri Dec 16 10:42:17 2005

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