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12 results for “from:Wen Huang”

lattice background grid
Wen Huang · Apr 8, 2010 · r-help

Hi, I wonder if anyone knows how to control color and darkness of the background grid generated by ' type = c("g", "p") ' in a lattice plot (e.g., in xyplot). The documentation does not seem to offer a way to...

Question about Sort
Wen Huang · Nov 11, 2008 · r-help

Hi, I am wondering if there is an option to control how R sort characters on different machines. For example, on my Mac OS X > sort(c("H", "a"), decreasing = TRUE) [1] "a" "H" The same command on a Linux...

Comparing variance components
Wen Huang · Feb 16, 2016 · r-help

Dear R-help members, Say I have two data sets collected at different times with the same design. I fit a mixed model using in R using lmer lmer(y ~ (1|A)) to these data sets and get two estimates...

lattice background grid
Wen Huang · Apr 8, 2010 · r-help

Thanks a lot! On Apr 8, 2010, at 10:50 PM, Felix Andrews wrote: > The default settings come from > trellis.par.get("reference.line") > > > > On 9 April 2010 13:07, Wen Huang <whuang.ustc at gmail.com> wrote: >> Hi, >> >> I...

Question about adding text to xYplot(Hmisc)
Wen Huang · May 29, 2008 · r-help

Hello, I have been trying to make a graph that have error bars and text at specific position. I used the following code from the help file of xYplot(Hmisc) as an example except I add a myPanel function, which...

lattice background grid
Wen Huang · Apr 8, 2010 · r-help

It works perfectly! Thanks! On Apr 8, 2010, at 10:32 PM, David Winsemius wrote: > > On Apr 8, 2010, at 11:07 PM, Wen Huang wrote: > >> Hi, >> >> I wonder if anyone knows how to control color and darkness of the...

linear mixed model question
Wen Huang · Sep 6, 2009 · r-help

Hello, I wanted to fit a linear mixed model to a data that is similar in terms of design to the 'Machines' data in 'nlme' package except that each worker (with triplicates) only operates one machine. I created a subset...

Question about Sort
Wen Huang · Nov 11, 2008 · r-help

Thanks a lot Professor Ripley! I did not go into much of the details in the help page and was hoping somebody could have a quick answer. The answer you provided is indeed helpful! Thank you. On Nov 11, 2008...

Comparing variance components
Wen Huang · Feb 16, 2016 · r-help

Hi Harold, Thank you for your input. I was not very clear. I wanted to compare the sigma2_A?s from the same model fitted to two different data sets. The same for sigma2_e?s. The motivation is when...

Comparing variance components
Wen Huang · Feb 16, 2016 · r-sig-mixed-models

Hi Paul, Thank you. That is a neat idea. How would you implement that? Could you write an example code on how the model should be fitted? Sorry for my ignorance. Thanks, Wen > On Feb 16, 2016, at 1:18...

Comparing variance components
Wen Huang · Feb 16, 2016 · r-sig-mixed-models

Hi Harold, Thank you for your input. I was not very clear. I wanted to compare the sigma2_A?s from the same model fitted to two different data sets. The same for sigma2_e?s. The motivation is when...

Comparing variance components
Wen Huang · Feb 16, 2016 · r-sig-mixed-models

Hi Harold, Thank you for your input. I was not very clear. I wanted to compare the sigma2_A?s from the same model fitted to two different data sets. The same for sigma2_e?s. The motivation is when...

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