;To: Redding, Matthew
>Cc: r-help@r-project.org
>Subject: Re: [R] nls: singular convergeance
>
>On 14/10/11 11:39, Redding, Matthew wrote:
>> Hi Rolf and Others,
>>
>> Thanks Rolf for your suggestion.
>> I've had a look at segmented, but can't see how it can h
it is
a linear regression tool. Can you let me know how it could be used?
Thanks,
Matt Redding
>-Original Message-
>From: Rolf Turner [mailto:rolf.tur...@xtra.co.nz]
>Sent: Thursday, 13 October 2011 6:46 PM
>To: Redding, Matthew
>Cc: r-help@r-project.org
>Subject: R
On 14/10/11 11:39, Redding, Matthew wrote:
Hi Rolf and Others,
Thanks Rolf for your suggestion.
I've had a look at segmented, but can't see how it can help.
My model is the solution to an ODE of a physical system. The fitted
parameters from
this model are the answers I require.
I'm not sure ho
-help@r-project.org
Sent: Thu Oct 13 18:04:53 2011
Subject: Re: [R] nls: singular convergeance
On 13/10/11 18:02, Redding, Matthew wrote:
> Dear R-experts,
>
> I have 28 data points that I would like to fit with a non linear
> broken-stick -- with three fitted parameters.
> When I vi
Try it and see. Shouldn't take more than about 10 minutes, all up.
cheers,
Rolf
- Original Message -
From: Rolf Turner
To: Redding, Matthew
Cc: r-help@r-project.org
Sent: Thu Oct 13 18:04:53 2011
Subject: Re: [R] nls: singular convergeance
On 13/10/11 18:02, Re
On 13/10/11 18:02, Redding, Matthew wrote:
Dear R-experts,
I have 28 data points that I would like to fit with a non linear
broken-stick -- with three fitted parameters.
When I view trace -- and use the final values as lines on the graph of
data -- it looks pretty good.
Q1. Why am I getting sin
Dear R-experts,
I have 28 data points that I would like to fit with a non linear
broken-stick -- with three fitted parameters.
When I view trace -- and use the final values as lines on the graph of
data -- it looks pretty good.
Q1. Why am I getting singular convergeance?
Q2. Can you suggest anot
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