[R] lack of memory for logistic regression in R?

[David Winsemius]

On Jun 14, 2009, at 9:06 PM, Michael wrote:

> Hi all,
>
> I am getting the following error message:
>
>> mymodel = glm(response ~ . , family=binomial, data=C);
> Error: cannot allocate vector of size 734.2 Mb
> In addition: Warning messages:
> 1: In array(0, c(n, n), list(levs, levs)) :
>  Reached total allocation of 1535Mb: see help(memory.size)
> 2: In array(0, c(n, n), list(levs, levs)) :
>  Reached total allocation of 1535Mb: see help(memory.size)
> 3: In array(0, c(n, n), list(levs, levs)) :
>  Reached total allocation of 1535Mb: see help(memory.size)
> 4: In array(0, c(n, n), list(levs, levs)) :
>  Reached total allocation of 1535Mb: see help(memory.size)
>
> -----------
>
> The data frame is 60000 x 20,
>
> is it too large for R?
>
> What shall I do? Will close all other softwares/applications help? My
> PC is Vista with 4GB memory. Thank you.

It's certainly not too large for R. Have you looked at the R Windows  
FAQ on the topic?

http://cran.r-project.org/bin/windows/base/rw-FAQ.html#There-seems-to-be-a-limit-on-the-memory-it-uses_0021

... and perhaps:

http://finzi.psych.upenn.edu/Rhelp08/2008-August/171649.html


David Winsemius, MD
Heritage Laboratories
West Hartford, CT