oun...@r-project.org [mailto:r-help-bounces@r-
> project.org] On Behalf Of muzammil786
> Sent: Wednesday, November 14, 2012 12:12 PM
> To: r-help@r-project.org
> Subject: Re: [R] R exponential regression
>
> I am having a similar problem on this data (given below). I have tried
>
I am having a similar problem on this data (given below). I have tried
several starting values for a and b, but it is consistently giving me:
fm <- nls(y~f(x,a,b), data.frame(x,y), start=c(a=1,b=1))
Error in numericDeriv(form[[3L]], names(ind), env) :
Missing value or an infinity produced whe
chrisli1223 wrote:
Hi all,
I have a dataset which consists of 2 columns. I'd like to plot them on a x-y
scatter plot and fit an exponential trendline. I'd like R to determine the
equation for the trendline and display it on the graph.
Here's one way:
f <- function(x,a,b) {a * exp(b * x)}
#
nd follow the rest
> of the procedure described in 1).
>
> Hope this helps.
>
> Murray M Cooper, Ph.D.
> Richland Statistics
> 9800 N 24th St
> Richland, MI, USA 49083
> Mail: richs...@earthlink.net
>
> - Original Message -
> From: "chrisli1223&q
.@earthlink.net
- Original Message -
From: "chrisli1223"
To:
Sent: Thursday, January 07, 2010 10:33 PM
Subject: [R] R exponential regression
Hi all,
I have a dataset which consists of 2 columns. I'd like to plot them on a
x-y
scatter plot and fit an exponential trendlin
Hi all,
I have a dataset which consists of 2 columns. I'd like to plot them on a x-y
scatter plot and fit an exponential trendline. I'd like R to determine the
equation for the trendline and display it on the graph.
Since I am new to R (and statistics), any advice on how to achieve this will
be
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