plotting Conditional Model (simplex parameters)

[Pietro-DAmelio]

Dear Sir/Madame,

I am using "plot_model" for a brms model with ordinal(monotonic) factor. The latest version of SJPlot 2.8.5 "plot_model" automatically include a facet called Conditional Model (simplex parameters) with the variance of the levels of the monotonic variable. There is no documentation on how to remove the facet "Conditional Model (simplex parameters)" from the plot (I have tried the "rm.terms" argument without success). How can it be done? It would be good to add it to the Sjplot package documentation where the words "simplex", "ordinal" and "monotonic" are not mentioned.

Thanks for your fantastic package! Cheers

[Pietro-DAmelio]

The second panel can be removed using the argument "rm.terms = " and specifying each single level of your factor. Pay attention to the names of the levels that are automatically renamed by the software (at least if you are using brms).

It would be useful to have an argument to avoid to plot the Conditional Model (simplex parameters) entirely.

[strengejacke]

Do you have a small reproducible example? I may take a closer look...

[Pietro-DAmelio]

Sorry for the delay and thank you for following up...

here it is:

library(sjPlot)
library(brms)

a<- rnorm(50, 5, 1)
b<- rnorm(50, 5, 1)
c<- c(rep(1,10), rep(2, 10), rep(3,10), rep(4,10), rep(5,10))

d<-data.frame(a,b,c)

mod=brms::brm(a~b+ mo(c),
              iter = 1000,
              cores = 4,
              data = d)

plot_model(mod,ci.style="whisker")

The only way I found to remove the second panel from the plot is to remove each level (which get a odd name)

plot_model(mod,ci.style="whisker",rm.terms = c("simo_moc1.1.",
             "simo_moc1.2.",
             "simo_moc1.3.",
             "simo_moc1.4.",
             "simo_moc1.5."))