.8111
From: Shimrit Abraham [mailto:shimrit.sabra...@gmail.com]
Sent: Tuesday, February 24, 2009 10:29 AM
To: Greg Snow
Cc: r-help@r-project.org; gmain.20.ph...@xoxy.net
Subject: Re: [R] Tracing gradient during optimization
Rob Steele suggested the same thing but I'm not sure I understand how to
bruary 24, 2009 7:00 AM
> > To: r-help@r-project.org
> > Subject: [R] Tracing gradient during optimization
> >
> > Hi everyone,
> >
> > I am currently using the function optim() to maximize/minimize
> > functions and
> > I would like to see more output of th
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greg.s...@imail.org
801.408.8111
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-
> project.org] On Behalf Of Shimrit Abraham
> Sent: Tuesday, February 24, 2009 7:00 AM
> To: r-help@r-project.org
> Subject: [R
gt;
>
>
>
>
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
> On
> Behalf Of Shimrit Abraham
> Sent: Tuesday, February 24, 2009 10:15
:15 AM
To: Ravi Varadhan
Cc: r-help@r-project.org
Subject: Re: [R] Tracing gradient during optimization
Hi Ravi,
Thanks for your great suggestion, it does exactly what I need as it provides
more insight into what is going on in the 'black box'. In addition, it's
much faster than opti
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-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Shimrit Abraham
Sent: Tuesday, February 24, 2009 9:00 AM
To: r-help@r-project.org
Subject: [R] Tracing gradient during optimization
Hi everyone,
I am curr
Hi everyone,
I am currently using the function optim() to maximize/minimize functions and
I would like to see more output of the optimization procedure, in particular
the numerical gradient of the parameter vector during each iteration.
The documentation of optim() describes that the trace paramet
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