[R] Error code 100 when using the function “fitdist” from the fitdistrplus package

[Nelly Reduan]

Hello,


Thanks David for your answer. I tested different parameters for Beta and Weibull distributions based on forums but I didn't find solutions.


Thank you very much for your time.

Have a nice day

Nell

________________________________
De : David Winsemius <dwinsemius at comcast.net>
Envoyé : jeudi 4 août 2016 08:45:01
À : Nelly Reduan
Cc : r-help at r-project.org
Objet : Re: [R] Error code 100 when using the function “fitdist” from the fitdistrplus package


> On Aug 3, 2016, at 4:42 PM, Nelly Reduan <nell.redu at hotmail.fr> wrote:
>
> Nelly Reduan has shared OneDrive?files with you. To view them, click the link or image below.
>
>
> <https://1drv.ms/u/s!Apkg2VlgfYyDgQo8BnoB_Ds4KXgR>
> [https://bzmvxw.by3301.livefilestore.com/y3mor2T_TYssPck9iMngzQsuiM_z140uCxN_MOvDhcRAILsrvwtWQ8cMMtzUvEuWjFYFytobNNvH8TJGzIrV7tjUHcKnVG_E76ru3RJEpGNPM3v-gKVJgYLhZPb9gLcQST6h-N6UtMumzrF9xVxCaWwJjLJ7amvLtDs816OaSSttsA?width=200&height=150&cropmode=center]<https://1drv.ms/u/s!Apkg2VlgfYyDgQo8BnoB_Ds4KXgR>
>

Cannot get anything useful from that URL.

>
> <https://1drv.ms/u/s!Apkg2VlgfYyDgQmEe6HOjP3d_4e2>
> [https://r1.res.office365.com/owa/prem/images/dc-jpg_20.png]<https://1drv.ms/u/s!Apkg2VlgfYyDgQmEe6HOjP3d_4e2>
>
> Figure_1.jpeg<https://1drv.ms/u/s!Apkg2VlgfYyDgQmEe6HOjP3d_4e2>
>
>
>
>
> Hello,
>
> I?m trying to fit distributions to data. To do this, I used the function ?fitdist? from the fitdistrplus package and I drew a Cullen and Frey graph (attached Figure 1). From this graph, I am attempting to fit different distributions: Beta, Gamma and Weibull. The function ?fitdist? works with Gamma distribution from this code:
>
> Fit.dist <- fitdist(x[x!=0], distr="gamma", method="mle",lower=c(0, 0),start=list(scale=1,shape=1))
>
> However, with Beta and Weibull distributions, I obtain this error message:
>
>  the function mle failed to estimate the parameters,
>
>                with the error code 100

A bit of searching produces this:

http://markmail.org/search/?q=list%3Aorg.r-project.r-help+fitdistrplus+error+code+100#query:list%3Aorg.r-project.r-help%20fitdistrplus%20error%20code%20100+page:1+mid:esp2okcorrdichtj+state:results



--
David.
>
>
>
> Here is my code to fit Beta and Weibull distributions:
>
> fit.dist <- fitdist(x_scaled, distr="beta", method = "mle")
>
> fit.dist <- fitdist(x, distr="weibull", method="mle", lower=c(0, 0))
>
> For the Beta distribution, I transformed the variable to have values between 0 and 1 as follows:
>
> x_scaled  <- (x-min(x))/max(x)
>
> Here are some information about data (summary() and attached Figure 2)
>
>> summary(x)
>
>   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
>
>    0.0    90.4   244.8   437.4   549.4  4904.0
>
> How can I fit Gamma and Weibull distributions to my data without having the error message ?
>
> Thank you very much for your time.
>
> Nell
>
>
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>
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David Winsemius
Alameda, CA, USA


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