On Fri, 2010-08-20 at 06:31 +0800, elaine kuo wrote:
>
>
> Oh, actually, I suppose you could automate this, so it will
> return all
> models with single variable:
>
> dd <- dredge(lm1)
> parms <- !is.na(dd[, -c(1, (ncol(dd) - c(0:7
> >>
> > Please kindly advise if it is possible to show the singular model with
> > only one certain variable using the command subset. (or maybe others)
> > I tried the command "subset=X3" but it returned multiple models
> > including X3.
> >
> >
> > The above demand might look unnecessary when vi
On Thu, 2010-08-19 at 04:42 +0800, elaine kuo wrote:
> Yes, I tried the example in the ?dredge and agreed that something else
> caused the mistake.
>
>
> Aside from the cause which takes time to clarify (16 explanatory
> variables in the model),
> I would like to ask another question.
>
>
> Pl
Yes, I tried the example in the ?dredge and agreed that something else
caused the mistake.
Aside from the cause which takes time to clarify (16 explanatory variables
in the model),
I would like to ask another question.
Please kindly advise if it is possible to show the singular model with only
on
On Wed, 2010-08-18 at 21:11 +0800, elaine kuo wrote:
> A cause other than data based on standardized regression
> was identified.
> It is that the manual command added with target <- at the left hand
> side.
> C1 did not work but C2 did.
> C1 target<-dredge(mig.stds, subset = temp_max)
>
>
>
A cause other than data based on standardized regression was identified.
It is that the manual command added with target <- at the left hand side.
C1 did not work but C2 did.
C1 target<-dredge(mig.stds, subset = temp_max)
C2 dredge(mig.stds, subset = temp_max)
Elaine
On Wed, Aug 18, 2010
On Wed, 2010-08-18 at 17:37 +0800, elaine kuo wrote:
> => I posted it for help, after following the manual with the
> command dredge but receiving an error message two days ago.
>
> command target<-dredge(mig.stds, subset = temp_max)
>error in eval(expr, en
>
>
> >
> Please suggest how to define subset in my case
>
> How would I know? I still haven't seen your data. You seem to be
> mistaken on what is and is not included in your model and you fitted it.
> What hope do we have...? However, given the model 'mig.stds' from above
> in this email:
>
> > m
> Hmmm. Thinking some more, I might not have answered your (unstated)
> question. What do your mean by GLM?
>
> => I meant generalized linear model as well. Thanks for the references.
The first one was mentioned first in my life time after keeping asking
the same question.
> I mean the Genera
On Wed, 2010-08-18 at 08:51 +0100, Gavin Simpson wrote:
> On Wed, 2010-08-18 at 05:42 +0800, elaine kuo wrote:
> > Thank you.
> > Most of the answers solved the puzzles.
> > => Please explain why fitted lm is better for GLM.
>
> Seriously? A GLM specified as glm(, family = gaussian) is the l
On Wed, 2010-08-18 at 05:42 +0800, elaine kuo wrote:
> Thank you.
> Most of the answers solved the puzzles.
>
>
> Q2
>
>
> > I tried to display sub-model with only temp_ran using the
> code below but
> > failed.
> > Please kindly suggest the potential fa
Thank you.
Most of the answers solved the puzzles.
Q2
> > I tried to display sub-model with only temp_ran using the code below but
> > failed.
> > Please kindly suggest the potential failure cause.
> >
> > code
> >
> > library(MuMIn)
> > datam <-read.csv("c:/migration/Mig_ratio_20100817.csv",hea
On Tue, 2010-08-17 at 16:05 +0800, elaine kuo wrote:
> Hello,
Why did you decide to post the exact same message from two different
email addresses??
> I am using package MuMIn to calculate AIC for a full model with 10
> explanatory variables.
> Thanks in advance in sharing your experience.
>
> Q
Hello,
I am using package MuMIn to calculate AIC for a full model with 10
explanatory variables.
Thanks in advance in sharing your experience.
Q1
In the AIC list of all models, each model is differentiated by model number.
Please kindly advise if it is possible to
find the corresponding explanato
Hello,
I am using package MuMIn to calculate AIC for a full model with 10
explanatory variables.
Thanks in advance in sharing your experience.
Q1
In the AIC list of all models, each model is differentiated by model number.
Please kindly advise if it is possible to
find the corresponding explanato
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