[R] Package Survey

[Thomas Lumley]

On Thu, 20 Sep 2007, Rita Sousa wrote:

> How I use the function as.svrepdesign without memory.size problems?
>
> desenho_npc_JK <- as.svrepdesign(desenho_npc,type="JKn")
>
> Error: cannot allocate vector of size 161.3 Mb

There is currently no easy way to affect the amount of memory that this 
uses, unless you can divide the data into pieces -- for example, use only 
some variables, or create separate design objects for strata.

The surveyNG package, which can handle very large designs, does not yet do 
replicate-weight analyses.


One question is how big the design actually is.
161.3Mb looks like a vector of length 21 million

If this is the number of observations in the study then you need a 
larger computer.  If it is the total number of replicate weights then you 
may just be able to increase the memory limit for R  on your computer 
using the memory.size() function, as the warning method suggests.

 	-thomas

> In addition: Warning messages:
>
> 1: Reached total allocation of 1022Mb: see help(memory.size)
>
> 2: Reached total allocation of 1022Mb: see help(memory.size)
>
> 3: Reached total allocation of 1022Mb: see help(memory.size)
>
> 4: Reached total allocation of 1022Mb: see help(memory.size)
>
>
>
> Many thanks,
>
> ---------------------------------------------------
> Rita Sousa
> Departamento de Metodologia e Sistemas de Informação
>
> INE - DP: Instituto Nacional de Estatística - Delegação do Porto
>
> Tel.: 22 6072016 (Extensão: 4116)
> ---------------------------------------------------
>
>
>
>
> 	[[alternative HTML version deleted]]
>
>

Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle