Displaying 2 results from an estimated 2 matches for "listerr01".
Did you mean:
listen01
2011 Sep 13
0
nls, the four parameter logistic equation, and prediction band
...a dataset with
about 160 observations. If that doesn't work, it is at least small enough to include in a
second posting that has a workable example.
JN
On 09/13/2011 06:00 AM, r-help-request at r-project.org wrote:
> Message: 79
> Date: Mon, 12 Sep 2011 17:12:14 -0700
> From: sg <listerr01 at gmail.com>
> To: r-help at r-project.org
> Subject: [R] nls, the four parameter logisitc equation, and prediction
> band
> Message-ID:
> <CAELtrnGUXprB3q0FPvMFamUjtkufnwaFju_BDunU-r-e2cKagg at mail.gmail.com>
> Content-Type: text/plain
>
> I have uploaded a da...
2011 Sep 13
0
nls, the four parameter logisitc equation, and prediction band
I have uploaded a datafile that contains the following two variables: time
(X value) and response (Y value). This is a fairly extensive file (with >
16000 entries). I have two questions:
1. I want to use the following equation to regress Y on X: Y-hat = min +
(max-min)/(1 + (X/EC50)^Hillslope).
Here is my R command:
nlsout <- nls(Y ~ (0 - (100-0)/(1 + (X/EC50)^hill)), start=c(EC50=125,