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

[Frank E Harrell Jr]

Michael wrote:
> I have to use logistic regression...

Good.  That's what lrm is dedicated to.
Frank

> 
> On Sun, Jun 14, 2009 at 8:04 PM, Frank E Harrell
> Jr<f.harrell at vanderbilt.edu> wrote:
>> Also it would be useful to compare glm with the lrm function in the Design
>> package, for speed and memory use.
>>
>> Frank
>>
>>
>> David Winsemius wrote:
>>> 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
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>
>> --
>> Frank E Harrell Jr   Professor and Chair           School of Medicine
>>                     Department of Biostatistics   Vanderbilt University
>>
> 


-- 
Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University