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Can someone explain why the following happens? --- :> quote(some.name) some.name :> bar <- structure(quote(some.name), class = "foo") :> quote(some.name) Error in print(some.name) : object 'some.name' not found :> bar <- quote(some.name) :> quote(some.name) Error...

?model.avg Look at "relative importance". > Message: 102 > Date: Wed, 13 Jul 2011 18:01:14 -0500 > From: Michael Just <mgjust at gmail.com> > To: r-help <r-help at r-project.org> > Subject: [R] Sum weights of independent variables...

p-value > 0.05 means that the 95% confidence intervals span zero. Use "confint" to get the CI. It is described in "?model.avg". cheers, kamil Dnia 2012-06-27 12:00, Robertson, Andrew pisze: > Dear R users, > > Recent changes...

summary(model.avg(...)) gives much more information. pozdrowienia, kamil Dnia 2012-06-28 12:00, KKulma<katarzyna.kulma at ebc.uu.se> pisze: > Message: 60 > From: KKulma<katarzyna.kulma at ebc.uu.se> > To:r-help at r-project.org...

Dnia 2012-03-18 01:15, Ted Stankowich pisze: > Hello! > I've been running a looped AIC analysis using several modules including ape, nlme, and MuMIn, and > during one particularly long analysis, R (ver 2.14.12) crashes several minutes...

'rank' should be "QAICc". AICc does not have argument 'chat', hence the error. kamil CatCowie wrote > Hi all, > > I'm having trouble with the model generating 'dredge' function in the > MuMIn > 'Multi-model Inference' package. > > Here's the script: > > globalmodel...

> dredge(x, subset = !(X1 & (X2 | X3)) & !(X2 & X3) & !(X1 & X3)) see > help("Logic", "base") Dnia 2011-08-26 12:00, r-help-request at r-project.org pisze: > ------------------------------ > > Message: 157 > Date: Fri, 26 Aug 2011 14:53:00 +0900 > From...

On 2014-01-15 11:00, r-help-request at r-project.org wrote: > Date: Wed, 15 Jan 2014 16:39:17 +1000 > From: Diana Virkki<d.virkki at griffith.edu.au> > To:r-help at r-project.org > Subject...

Dear Sophie, The answer is 'typo'. 'dredge' does not have an argument named 'marge.ex'. k Dnia 2011-10-25 12:00, r-help-request at r-project.org pisze: > Message: 131 > Date: Mon, 24 Oct 2011 17:08:41...

Hi Arnaud, your question has in fact nothing to do with gam or model selection. What you are asking is: what is the logical expression that yields True when AB is False or both A and B are True. Now...

It's the (typical) na.action = na.omit problem. You have missing values in your data, so the number of observations differs between models using different variables. BTW with the recent lme4 package, your code throws a lot of warnings...

Hi Arnaud, please read ?dredge -> "Details" -> "Subsetting", where this is explained. On 2014-11-12 15:19, Arnaud Mosnier wrote: > Hi Kamil, > > Thanks for your answer. In fact, I already tried something with > operators in such a way you advise...

Dnieper 2012-01-17 10:51, Dunbar, Michael J. piste: > > The subject says it all really. > > Question 1. > Here is some code created to illustrate my problem, can anyone spot where I'm going wrong? > > Question 2. > The reason I...

Hi Marcos, The 'adjusted CI' (based on the 'adjusted se estimator' as in section 4.3.3 of Burnham & Anderson 2002) cannot be calculated for 'lmer' model because it does not give df's for the coefficients. kamil Dnia 2011...

There is indeed a glitch in 'dredge' that prevents you from seeing the actual error message. It is explained in "?dredge", in section "Missing values". (it's been corrected now in 1.9.14, on R-forge) kamil On 2013...

Hi Cat, are you using some very old version of MuMIn? That would explain the missing 'QAICc'. As for the error message about 'logLik', it usually occurs when there are some misspelled arguments (that go into "..." and are passed to...

On 2014-06-27 11:00, r-help-request at r-project.org wrote: > Date: Thu, 26 Jun 2014 15:12:08 +0200 > From: Carlos Bautista Le?n <carlosbautistaleon at gmail.com> > To: r-help at r-project.org > Subject...

You are trying to average coefficients from models fitted to different data (as you have manipulated Lat+Long values), you cannot do it using AIC weights. kamil On 2013-12-11 11:00, r-help-request at r-project.org...

works ok with mock-up data. Can you give some code to reproduce this error? kamil On 2013-11-15 11:00, r-help-request at r-project.org wrote: > Message: 56 > Date: Thu, 14 Nov 2013 18:01:27...

Hi Caitie, whatever it is you want to achieve, you seem to be doing it in a very complicated way. The code you gave appears to be for producing a model selection table, yet you say you're trying to...