Displaying 2 results from an estimated 2 matches for "canoemoore".
2010 Feb 25
1
Heterogeneous Correlation Matrix with Survey Weights
...ights reflecting unequal probabilities of
selection). I want to fit a structural equation model with sem(). I have
run sem() on weighted covariance matrices using advice from John Fox (see
<http://tolstoy.newcastle.edu.au/R/e5/help/08/12/8773.html> and
<http://blog.lib.umn.edu/moor0554/canoemoore/2009/09/sem_complex_samples_r_update.html>).
However, since I have categorical/ordinal variables, I would like to
compute a weighted heterogeneous correlation matrix with hetcor().
Is there a way to do this in R? I couldn't find any guidance in the r-help
archives or in the polycor help...
2011 Jan 12
1
Degrees of freedom
Hello,
I have a little problem about degree of freedom in R.
if you can help me, I will be happy.
I used nlme?function to analyze my data and run the linear mixed
effects model in R.
I did the linear mixed effect analysis in SAS?and SPSS as well.
However, R gave?the different degrees of freedom than SAS?and SPSS did.
Can you help me to learn what the reason is to obtain different
degrees of