search for: dejongroel

Displaying 6 results from an estimated 6 matches for "dejongroel".

2006 Dec 22
0
plot.mids / Error in plot.new() : figure margins too large
...ge I read the same question in thread from November 2005 (see below). I actually have the same problem. Is it now possible to plot subsets of mids.objects. If yes, how? My datasets has 8 variables with missing values. Thanks in advance, Simon Attachment: From: Roel de Jong <dejongroel <mailto:dejongroel?Subject=Re:%20%5bR%5d%20plot%20of%20mice.mids%20objects> > Date: Fri, 04 Nov 2005 12:57:05 +0100 Hi, it is impossible to plot a subset of the variables at the moment, but we could add it. p.s. The latest version of mice is v1.14, which can be downloaded from CRAN...
2005 Sep 30
0
R-help Digest, Vol 31, Issue 30
...random effects themselves. As far as I can see, this is a straightforward use of MCMC to estimate model parameters; it is not clear to me the results from the lmer() fit are used. John Maindonald. On 30 Sep 2005, at 8:00 PM, r-help-request at stat.math.ethz.ch wrote: > From: Roel de Jong <dejongroel at gmail.com> > Date: 29 September 2005 11:19:38 PM > To: r-help at stat.math.ethz.ch > Subject: [R] standard error of variances and covariances of the > random effects with LME > > > Hello, > > how do I obtain standard errors of variances and covariances of the...
2008 Oct 14
1
library MICE warning message
Hello. I have run the command imp<-mice(mydata, im=c("","pmm","logreg","logreg"),m=5)  for a variable with no missing data, a numeric one and two variables with binary data. I got the following message: There were 37 warnings (use warnings() to see them) > warnings() Warning messages: 1: In any(predictorMatrix[j, ]) ... : coercing argument of
2005 Sep 29
1
standard error of variances and covariances of the random effects with LME
Hello, how do I obtain standard errors of variances and covariances of the random effects with LME comparable to those of for example MlWin? I know you shouldn't use them because the distribution of the estimator isn't symmetric blablabla, but I need a measure of the variance of those estimates for pooling my multiple imputation results. Regards, Roel.
2005 Oct 10
1
lmer / variance-covariance matrix random effects
Hello, has someone written by chance a function to extract the variance-covariance matrix from a lmer-object? I've noticed the VarCorr function, but it gives unhandy output. Regards, Roel de Jong
2005 Nov 01
3
glmmpql and lmer keep failing
Hello, I'm running a simulation study of a multilevel model with binary response using the binomial probit link. It is a random intercept and random slope model. GLMMPQL and lmer fail to converge on a *significant* portion of the *generated* datasets, while MlWin gives reasonable estimates on those datasets. This is unacceptable. Does anyone has similar experiences? Regards, Roel de