David,

Thanks for your advice. I appreciate it.

Sincerely,
Jialin Huang

On Mon, Mar 5, 2012 at 12:14 PM, jim holtman <jholtman@gmail.com> wrote:

> Learn some basic debugging for R.  There are several functions (debug,
> browser, ...) that can help.  Put the following in your Startup
> script:
>
> options(error=utils::recover)
>
> or at least execute it manually.  This will give you the trace of the
> stack when the error happens and may help you identify the statement
> that is causing the problem.  This may allow you to examine the
> various objects you have at that point in time.
>
> So there are ways that you can find out what the problem is, but you
> will have to invest some time in learning how to debug your code.
> There is also the 'debug' package which provides a nice way of tracing
> execution in a function, but I think first follow the hints above to
> trap when the error occurs so you can trace down what is causing it.
>
> On Mon, Mar 5, 2012 at 12:22 PM, David Winsemius <dwinsemius@comcast.net>
> wrote:
> >
> > On Mar 5, 2012, at 10:23 AM, huang jialin wrote:
> >
> >> Hello,
> >>
> >> I am running a simulation on an old computer with memory of 512M. I
> >> constantly received a warning of "cannot allocate a vector of ...". How
> >> can
> >> I identify the matrix causing the problem? Is there any way to fix this
> >> issue?
> >
> >
> > ?object.size
> >
> >
> >>
> >> I would very appreciate your inputs. Thank you very much.
> >>
> >> Sincerely,
> >> Jialin Huang
> >>
> >>        [[alternative HTML version deleted]]
> >>
> >> ______________________________________________
> >> R-help@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.
> >
> >
> > David Winsemius, MD
> > West Hartford, CT
> >
> >
> > ______________________________________________
> > R-help@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.
>
>
>
> --
> Jim Holtman
> Data Munger Guru
>
> What is the problem that you are trying to solve?
> Tell me what you want to do, not how you want to do it.
>

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