[R] Hugh image created from modest data

[Berton Gunter]

Simon:

ls(all=TRUE) will show you all objects in your workspace. If you have plot
history recording turned on,for example,.SavedPlots can get quite large and
will be part of your saved image.

-- Bert Gunter
Genentech Non-Clinical Statistics
South San Francisco, CA
 
"The business of the statistician is to catalyze the scientific learning
process."  - George E. P. Box
 
 

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Simon Gatehouse
> Sent: Tuesday, February 01, 2005 2:10 PM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Hugh image created from modest data
> 
> Dear R users,
> 
> I am running R2.1 on windows XP SP2.  I have a problem that I 
> fear I am
> providing insufficient information to resolve.  But if anyone 
> can suggest
> directions to understand the problem I would be most grateful.
> 
>  
> 
>  
> 
> I import modest datasets which create a list of data frames 
> (primary data
> object) amounting to 15.9Mb  when measured internally by 
> object.size() . The
> sizes of the list components in the primary data object  are 
> consistent with
> the total, again when measured by object.size() All other 
> objects in my work
> area contribute less than 2Kb
> 
>  
> 
> After doing some analysis the primary data object would on 
> occasions expand
> to 800Mb but is (usually) cut back prior to saving the image 
> of the work
> area on exiting, or at sparse intervals during processing.
> 
>  
> 
> The situation now is that internally, as measured by 
> object.size(),  my
> working directory is less than 16Megs but image.save is 
> creating an .Rdata
> image in excess of 800Meg. Could this be consistent in some 
> way?  If it is
> not, or is unusual, how would I go about finding the extra, unwanted
> information and removing it.
> 
>  
> 
> Any comment or suggestions would be appreciated
> 
>  
> 
> Simon Gatehouse
> 
> 
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> 
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