Pl
On Feb 27, 2012 6:01 PM, <r-sig-ecology-request@r-project.org> wrote:

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> Today's Topics:
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>   1. Need help to find multifactors influence? (Muhammad Arshad)
>
>
> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 27 Feb 2012 05:15:23 +0700
> From: Muhammad Arshad <arshad4uonly@gmail.com>
> To: r-sig-ecology@r-project.org
> Subject: [R-sig-eco] Need help to find multifactors influence?
> Message-ID:
>        <CADkfwouwtYWQFmu3+6giEKpD=e_KWRjSDf0BtL21sTd=gcQA_A@mail.gmail.com
> >
> Content-Type: text/plain; charset="iso-8859-1"
>
> Dear friends,
>
> 1-I have B.I value (Dependent variable).
> 2-I have land cover types in the form of % area against each B.I (that was
> clipped through buffer for each B.I ). Buffer was put by considering B.I
> behavior that can be influence by land type.
> 3- I want to see the influence of land type on B.I.
> 4- Suppose B.I value varies with the change in (area) one or more types of
> land cover. This change may be linear up to some extent but can also
> increase with the combination of land types. Land types can also differ
> from one buffer to other buffer.
> 5- I want to develop a Predication Model\Regression Equation to predict B.I
> value with the combined influence of different land use types.
> 6- I am confused which Regression model (Linear, Logistic, and Poisson,
> Exponential etc...)  Should be adopted to develop this type of relationship
> where factors are varying.
> 7- Total study map consists of 77 land cover types and each buffer gets
> some land type.
>
> Please see the attached data having values extracted for each land type
> (a1~a77 are land type names against each BI).
>
> I already tried to solve it with different methods. Even I made groups in
> term of B.I & also in term of land cover types. But still failed to
> find correlation with reasonable factors.
>
> I will happy for your informative response to solve my this problem. Please
> let me know if my question is not clear.
>
> Warm Regards,
> Malik\Arshad
>
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> End of R-sig-ecology Digest, Vol 47, Issue 23
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