Look at package smatr. It fits RMA (called here standardized major axis)
regression, plots the line, and provides confidence limits.
--
David L Carlson
Associate Professor of Anthropology
Texas A&M University
College Station, TX 77843-4352
-Orig
PM
> To: r-help@r-project.org
> Cc: Mark Difford
> Subject: Re: [R] model II regression - how do I do it?
>
> On Friday 29 August 2008, Mark Difford wrote:
>> Hi Danilo,
>>
>> >> I need to do a model II linear regression, but I could not find out
>> >>
-project.org
Cc: Mark Difford
Subject: Re: [R] model II regression - how do I do it?
On Friday 29 August 2008, Mark Difford wrote:
> Hi Danilo,
>
> >> I need to do a model II linear regression, but I could not find out
> >> how!!
>
> The smatr package does so-called mo
Hi Dylan,
>> While this topic is fresh, are there any compelling reasons to use Model
>> II
>> regression?
The fact that it is the type of regression used in principal component
analysis makes it a compelling method. Compelling reason? It is used to take
account of measurement errors in both y
On Friday 29 August 2008, Mark Difford wrote:
> Hi Danilo,
>
> >> I need to do a model II linear regression, but I could not find out
> >> how!!
>
> The smatr package does so-called model II (major axis) regression.
>
> Regards, Mark.
While this topic is fresh, are there any compelling reasons to
Hi Danilo,
>> I need to do a model II linear regression, but I could not find out how!!
The smatr package does so-called model II (major axis) regression.
Regards, Mark.
Danilo Muniz wrote:
>
> I need to do a model II linear regression, but I could not find out how!!
>
> I tryed to use the
Hi Danilo,
>> I need to do a model II linear regression, but I could not find out how!!
The smatr package does so-called model II (major axis) regression.
Regards, Mark.
Danilo Muniz wrote:
>
> I need to do a model II linear regression, but I could not find out how!!
>
> I tryed to use the
Dear Danilo:
Here is one approach with the formal reference being:
Computational Statistics & Data Analysis 23 ( 1997 ) 355-372
COMPUTATIONAL
STATISTICS
& DATA ANALYSIS
Generalization of the geometric mean
functional relationship
Norman R. Draper, Yonghong (Fred) Yang
Department of Statistics, 12
On Fri, 2008-08-29 at 15:37 -0200, Danilo Muniz wrote:
> I need to do a model II linear regression, but I could not find out how!!
>
> I tryed to use the lm function, but I did not discovered how to specify the
> model (type I or type II) to the function... could you help me?
Jari Oksanen and Pie
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