similar to: identifying convergence or non-convergence of mixed-effects regression model in lme4 from model output

Displaying 20 results from an estimated 1100 matches similar to: "identifying convergence or non-convergence of mixed-effects regression model in lme4 from model output"

2014 Oct 19
3
Warnings en GLMM (lme4)
Hola, Soy nuevo manejando R y no tengo mucha experiencia. Estoy intentando modelar una función que me relacione el nº de cebas (nº de presas que los padres traen a los pollos) con el tamaño de parche de un bosque (factor categórico; 2 niveles= grande y pequeño). Al ser un conteo (nº de cebas) he pensado utilizar familia= poisson con link= logarítmico. He construido un GLMM con: Nº de cebas
2006 Jul 04
1
lmer print outs without T
Hi, I have been having a tedious issue with lmer models with lots of factors and lots of levels. In order to get the basic information at the beginning of the print out I also have to generate these enormous tables as well. Is there a method command to leave off all of the effects and correlations? Or, do I have to go to string commands?
2010 Sep 28
1
Function works when custom defined but not when part of a package
Hi folks, I'm not sure if this is a bug or not so I thought I'd check here first. I came across it while working on an update to my package where I try to get AICtab slot from the summary of an lmer object ( summary(my_lmer)@AICtab ). The attached contains a minimal example, where the code below will work if you load the f() function by sourcing the package's R code but will throw an
2012 Sep 13
1
AICcmodavg
I am using the AICmodavg package and using R version 2.15.1. I need help with code that is instead being read as text. Below is a subset of code... I actually have 12 models, but I am trying to get this to work for 2 below right now. Everything 'appears' to work through the line starting with Modnames. After that the code starting with aictab and beyond is recognized as text and not
2006 Aug 21
1
Retrieving p-values and z values from lmer output
I can't find a way to retrieve z values and p-values from the output from lmer in the lme4 package. How is this done? Rick B.
2008 Apr 02
2
restrictions for attribute access <Watchdog: Virus checked>
Hello everybody, I have a problem with accessing class attributes. I think it might be due to namespace access restrictions or something similar, but I'm unable to figure it out, maybe someone knows the trick how to do it ... I'm trying to extract some information from the summary object for a model fitted using the lmer function from the lme4 package: smry <- summary(lmer(foo
2012 Feb 13
2
R's AIC values differ from published values
Using the Cement hardening data in Anderson (2008) Model Based Inference in the Life Sciences. A Primer on Evidence, and working with the best model which is lm ( y ~ x1 + x2, data = cement ) the AIC value from R is model <- lm ( formula = y ~ x1 + x2 , data = cement ) AIC ( model ) 64.312 which can be converted to AICc by adding the bias
2010 May 28
1
Comparing and Interpreting GAMMs
Dear R users I have a question related to the interpretation of results based on GAMMs using Simon Woods package gamm4. I have repeated measurements (hours24) of subjects (vpnr) and one factor with three levels (pred). The outcome (dv) is binary. In the first model I'd like to test for differences among factor levels (main effects only): gamm.11<-gamm4(dv ~ pred +s(hours24), random = ~
2008 Jan 24
0
(lme4: lmer) mcmcsamp: Error in if (var(y) == 0)
I've got a problem with "mcmcsamp" used with glmer objects produced with "lmer" from the lme4 package. When calling mcmcsamp, I get the error Error in if (var(y) == 0) { : missing value where TRUE/FALSE needed This does not occur with all models, but I can't find anything wrong with the dataset. If the error is in my data, can someone tell me what I am looking
2010 Jan 26
1
AIC for comparing GLM(M) with (GAM(M)
Hello I'm analyzing a dichotomous dependent variable (dv) with more than 100 measurements (within-subjects variable: hours24) per subject and more than 100 subjects. The high number of measurements allows me to model more complex temporal trends. I would like to compare different models using GLM, GLMM, GAM and GAMM, basically do demonstrate the added value of GAMs/GAMMs relative to
2010 May 18
1
BIC() in "stats" {was [R-sig-ME] how to extract the BIC value}
>>>>> "MM" == Martin Maechler <maechler at stat.math.ethz.ch> >>>>> on Tue, 18 May 2010 12:37:21 +0200 writes: >>>>> "GaGr" == Gabor Grothendieck <ggrothendieck at gmail.com> >>>>> on Mon, 17 May 2010 09:45:00 -0400 writes: GaGr> BIC seems like something that would logically go into stats
2012 Nov 08
2
Comparing nonlinear, non-nested models
Dear R users, Could somebody please help me to find a way of comparing nonlinear, non-nested models in R, where the number of parameters is not necessarily different? Here is a sample (growth rates, y, as a function of internal substrate concentration, x): x <- c(0.52, 1.21, 1.45, 1.64, 1.89, 2.14, 2.47, 3.20, 4.47, 5.31, 6.48) y <- c(0.00, 0.35, 0.41, 0.49, 0.58, 0.61, 0.71, 0.83, 0.98,
2008 Dec 25
0
Class and object problem
Odette Gaston <odette.gaston <at> gmail.com> writes: > > Dear all, > > I have a problem with accessing class attributes. > I was unable to solve this > yet, but someone may know how to solve it. My best guess at your immediate problem (doing things by hand) is that you're not using the whole vector. From your example: Delta <- c(m1 = 0, m2 = 1.8, m3 =
2008 Dec 19
4
Akaike weight in R
Odette > Wondering how can I generate "Akaike weight" with R? I know the description, > but is there any function to generate by R on the web-site or R library? > I am using GLM or GLMM (family=binomial), so would be appreciated if you > help me. You could have a look at this. http://bm2.genes.nig.ac.jp/RGM2/R_current/library/aod/man/summary.aic.html Which is in the OAD
2018 May 23
0
cluster brick logs filling after upgrade from 3.6 to 3.12
Recently we updated a Gluster replicated setup from 3.6 to 3.12 (stepping through 3.8 first before going to 3.12). Afterwards I noticed the brick logs were filling at an alarming rate on the server we have the NFS service running from: $ sudo tail -20 /var/log/glusterfs/bricks/export-gluster-shared.log [2018-05-23 06:22:12.405240] I [MSGID: 139001] [posix-acl.c:269:posix_acl_log_permit_denied]
2007 Nov 11
0
Patch to sshd match
Please find attached a patch against openssh-4.7p1 It extends the Match in sshd_config. The point is that it is sometimes easier (and more secure) to match on NOT something. A criterium may be preceded by ! which inverts the condition, thus: Match !Group sysadmins ForceCommand /usr/bin/sftp forces use of sftp on any user who is not a system administrator. A !! has the
2013 Apr 01
0
ggplot2 label problem
I have a problem to plot label (Year) only for significant values (in this case spoz and sneg). I use this code, but don't work with labels. library(ggplot2) ggplot(data1, aes(x = Year, y = value,fill=type,width=1))+ geom_bar(stat="identity",position="identity")+ scale_y_continuous(breaks = round(seq(-100, 100, by = 10),10))+ theme_bw() Thank you! the data used is:
2005 Nov 10
2
ltext - adding text to each panel from a matrix
Hi all (really probably just Deepayan): In the plot below I want to add text on either side of each violin plot that indicates the number of observations that are either positive or negative. I'm trying to do this with ltext() and I've also monkeyed about with panel.text(). The code below is generally what I want but my calls to ltext() are wrong and I'm not sure how to fix them.
2008 Dec 16
1
refer to next line within a data-frame an select cases
Hi, I have a problem sorting and selecting entries within a data-frame and I don't know if it is possible to solve it with R ... (probably yes, but I have no idea how). Following Data; row1 row2 a 12 pos NA a 3 neg NA a 5 neg NA a 11 pos NA I want to extract the values in row 2 in the lines with an "a" in row1. But I want to have two vectors: vector x with all
2011 Jun 27
1
Neg Binomial In GEE
Hi, I want to fit a GEE with a negative binomial distribution. I have uesd already a poisson glm and then neg binommial to deal with alot of dispersion. In my neg binomial residuals i have some patterns so i have implemented a GEE, but only with a poisson family as i couldnt with neg binomial. However the residual patterns in fact look worse here. When i try and put neg binomial family it