R help - Sep 2022 - How to solve this?

Hi everyone,

Can some one help me?

If my coding come out the error like this "Error in optim(start, nhl, ...,
method = method) : non-finite value supplied by optim". What it means?
How can I solve this?

Thank you.

-- 





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after a couple of minutes reading from them. Our planet is at stake. Please 
be considerate. THINK TWICE BEFORE PRINTING THIS.."

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Hi Zakaria,

I had such an issue before, and in my case, the problem was that the calculation
of the objective for some values used by the optimizer gave back a non-finite
result. In general, this might be because the objective function has poles, and
the calculation returns inf. Alternatively, there might be a calculation error
somewhere in the objective function's code resulting in a nan value. I think
that first, you need to determine more precisely what the problem is in your
case. You could try evaluating the objective at different points (for instance,
your initialization values) to see how it behaves.

I hope this helps!
Pantelis

-----Original Message-----
From: R-help <r-help-bounces at r-project.org> On Behalf Of SITI AISYAH
ZAKARIA
Sent: Thursday, September 1, 2022 5:22 AM
To: r-help mailing list <r-help at r-project.org>
Subject: [R] How to solve this?

Hi everyone,

Can some one help me?

If my coding come out the error like this "Error in optim(start, nhl, ...,
method = method) : non-finite value supplied by optim". What it means?
How can I solve this?

Thank you.

-- 





"..Millions of trees are used to make papers, only to be thrown away after
a couple of minutes reading from them. Our planet is at stake. Please be
considerate. THINK TWICE BEFORE PRINTING THIS.."

DISCLAIMER: This email \ and any files transmitte...{{dr...{{dropped:9}}