Thank you to all who have made great suggestions. Both Gabor and David's
methods work well for me. I see now where I was going wrong with this, I
wasn't loading it to a function. I also did not know expression could be
used in that way.
Thank you very much for your help!
Katrina
On Fri, Nov 18,
On Thu, Nov 17, 2011 at 4:40 PM, Katrina Bennett wrote:
> Hello, I am wondering if someone can help me. I have the following function
> that I derived using nls() SSlogis. I would like to find its derivative. I
> thought I had done this using deriv(), but for some reason this isn't
> working out f
be there are other approaches too.
JN
On 11/18/2011 06:00 AM, r-help-requ...@r-project.org wrote:
> Message: 88
> Date: Thu, 17 Nov 2011 12:40:59 -0900
> From: Katrina Bennett
> To: r-help@r-project.org
> Subject: [R] Obtaining a derivative of nls() SSlogis function
> Message-
On Nov 17, 2011, at 4:40 PM, Katrina Bennett wrote:
Hello, I am wondering if someone can help me. I have the following
function
that I derived using nls() SSlogis. I would like to find its
derivative. I
thought I had done this using deriv(), but for some reason this isn't
working out for me
Hello, I am wondering if someone can help me. I have the following function
that I derived using nls() SSlogis. I would like to find its derivative. I
thought I had done this using deriv(), but for some reason this isn't
working out for me.
Here is the function:
asym <- 84.951
xmid <- 66.90742
sca
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