R help - Nov 2012 - simple linear regression with proportion data

Dear list:

Can I use simple linear regression when I have proportion data for
both dependent and independent variables?  Or, should I use beta
regression analysis?  Or any suggestion?

Thanks!

SH

SH <emptican <at> gmail.com> writes:
> 
> Dear list:
> 
> Can I use simple linear regression when I have proportion data for
> both dependent and independent variables?  Or, should I use beta
> regression analysis?  Or any suggestion?
> 
  The distribution of the independent variable is irrelevant (in
some circumstances it matters whether it is measured without error or not).

  Depending on what you want to do, and how close the proportion data
come to 0 or 1, you might choose to use linear regression, or linear regression
on arcsine-square-root transformed data, or beta regression.  It really
depends what you want to do with the answers and what your audience expects. 
You might try this on http://stats.stackexchange.com with a bit more context.

   Ben Bolker

Very useful comment and helpful website!  Many thanks to you!!!

SH

On Fri, Nov 16, 2012 at 5:16 PM, Ben Bolker <bbolker at gmail.com>
wrote:
> SH <emptican <at> gmail.com> writes:
>
>>
>> Dear list:
>>
>> Can I use simple linear regression when I have proportion data for
>> both dependent and independent variables?  Or, should I use beta
>> regression analysis?  Or any suggestion?
>>
>
>   The distribution of the independent variable is irrelevant (in
> some circumstances it matters whether it is measured without error or not).
>
>   Depending on what you want to do, and how close the proportion data
> come to 0 or 1, you might choose to use linear regression, or linear
regression
> on arcsine-square-root transformed data, or beta regression.  It really
> depends what you want to do with the answers and what your audience
expects.
> You might try this on http://stats.stackexchange.com with a bit more
context.
>
>    Ben Bolker
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.