[R] Mixed Beta Disrubutions

Jim Lemon drjimlemon at gmail.com
Tue Dec 29 03:58:09 CET 2015


Hi mesude,
Achim's example seems particularly clear. Install the "betareg" and
"flexmix" packages. I obtain a reasonable looking result for alpha and beta
for a simulated dataset very similar to yours.

> a
    Comp.1     Comp.2
10.0674445  0.6452801
> b
  Comp.1   Comp.2
2.830934 0.769768

Jim


On Tue, Dec 29, 2015 at 6:40 AM, mesude bayrakci <mesudebayrakci at gmail.com>
wrote:

> Hello,
>
> I have data; one column and 310 rows. When I plot the histogram, it has two
> peaks; please see the attachment. I would like to find appropriate
> distribution that fits the data. I tried to mixtools in R, but it did not
> fit well.
>
> I want to mix two beta distribution. I found that there is betareg package
> in R but the shape1,shape2 were known or there were two different data in
> the all examples.
>
> I do not know where to start. How can I use betamix in R to fit the data?
> Any hint?
>
> I really appreciate.
>
>
> Thank you
>
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