2 hypotheses:
1. Homework problem
2, extrapolation
Cheers,
Bert
On Mon, Nov 28, 2011 at 3:35 AM, Frank Harrell wrote:
> Note that fitting to the ECDF will result in a distribution estimator that
> has the same mean squared error as the ECDF. That makes it difficult to see
> the value of fitti
Note that fitting to the ECDF will result in a distribution estimator that
has the same mean squared error as the ECDF. That makes it difficult to see
the value of fitting.
Frank
Lathouri, Maria wrote
>
> Dear all,
>
> I need to plot an cumulative distribution plot of a variable and then to
> f
I wanna get the x and y value of the QQ-plot from this plotdist function.
What should I do..??
Thank you
Kind regards,
Rahma
djmuseR wrote
>
> Hi:
>
> The fitdistrplus package from CRAN may be useful. I tried it on your data
> and the lognormal seemed to fit well, apart from the outlier.
21:36
> To: Lathouri, Maria
> Cc: r-help@r-project.org
> Subject: Re: [R] fitting a distribution to a ecdf plot
>
> Hi:
>
> The fitdistrplus package from CRAN may be useful. I tried it on your data
> and the lognormal seemed to fit well, apart from the outlier. I
Hallo
yes I tried it as well and it works;
Thank you a lot
Maria
From: Dennis Murphy [djmu...@gmail.com]
Sent: 15 March 2011 21:36
To: Lathouri, Maria
Cc: r-help@r-project.org
Subject: Re: [R] fitting a distribution to a ecdf plot
Hi:
The fitdistrplus package
Hi:
The fitdistrplus package from CRAN may be useful. I tried it on your data
and the lognormal seemed to fit well, apart from the outlier. I just
followed the vignette that accompanies the package.
library(fitdistplus)
plotdist(NOEccu) # ecdf
descdist(NOEccu, boot =
nt: 15 March 2011 16:19
> To: Lathouri, Maria
> Cc: r-help@r-project.org
> Subject: Re: [R] fitting a distribution to a ecdf plot
>
> On Mar 15, 2011, at 12:00 PM, Lathouri, Maria wrote:
>
> > Dear all,
> >
> > I need to plot an cumulative distribution plot of a vari
From: David Winsemius [dwinsem...@comcast.net]
Sent: 15 March 2011 16:19
To: Lathouri, Maria
Cc: r-help@r-project.org
Subject: Re: [R] fitting a distribution to a ecdf plot
On Mar 15, 2011, at 12:00 PM, Lathouri, Maria wrote:
Dear all,
I need to plot an cumulative distribution
To: Lathouri, Maria
Cc: r-help@r-project.org
Subject: Re: [R] fitting a distribution to a ecdf plot
On Mar 15, 2011, at 12:00 PM, Lathouri, Maria wrote:
> Dear all,
>
> I need to plot an cumulative distribution plot of a variable and
> then to fit a distribution to that, probably
On Mar 15, 2011, at 12:00 PM, Lathouri, Maria wrote:
Dear all,
I need to plot an cumulative distribution plot of a variable and
then to fit a distribution to that, probably a weibull or lognormal.
I have plotted the ecdf as
plot(ecdf(x))
but I haven't managed to fit the distribution. I
Dear all,
I need to plot an cumulative distribution plot of a variable and then to fit a
distribution to that, probably a weibull or lognormal.
I have plotted the ecdf as
> plot(ecdf(x))
but I haven't managed to fit the distribution. I have as well attached the data.
I would appreciate if you
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