plot_model not plotting interaction terms for coefficient plot

[tfjaeger]

At least for brms::brm-fitted zero-inflated Poisson models, I don't seem to be able to select interaction terms for the coefficient plot (type = "est"). The standard output contains all coefficients, correctly separated for the poisson and the zero-inflation part.

However, when I want to select specific terms through the terms argument, only the main effects seem to be plotted (and the same ones for both the Poisson and the zero-inflated parts). In short, the terms argument doesn't seem to be working properly for these models.

Specifically, I tried to plot all effects for which the CI of the estimate did not include 0 (significant ought to have heavy scare quotes around it below):

s <- summary(glm.orders)$fixed
n <- s %>%
  as_tibble() %>%
  mutate(n = 1:nrow(.)) %>%
  filter(`l-95% CI` > 0 | `u-95% CI` < 0) %>%
  pull(n)
significant_terms <- row.names(s)[n]

When I then plot the model:

plot_model(
  glm.orders,
  terms = significant_terms,
  show.zeroinf = T,
  show.values = T,
  ci.lvl = .95)

All looks fine, except that only the 'significant' main effects are plotted, and those are the same for both components of the model. I assume this is a bug? Or is there a specific syntax to select term? Specifically, if this the vector of all 'significant' effects, only 2:6 are plotted but both the Poisson and the zero-inflated (zi) coefficients corresponding to those terms.

 [1] "Intercept"                                                                                   
 [2] "zi_Intercept"                                                                                
 [3] "brandB"                                                                                
 [4] "sourceAndroidvs.iOS"                                                                            
 [5] "sourcePhonevs.not"                                                                              
 [6] "typereturn"                                                                            
 [7] "brandB:sourceAndroidvs.iOS"                                                               
 [8] "brandB:sourcePhonevs.not"                                                                 
 [9] "brandB:typereturn"                                                               
[10] "sourceAndroidvs.iOS:typereturn"                                                           
[11] "sourcePhonevs.not:typereturn"                                                             
[12] "brandB:sourceAndroidvs.iOS:typereturn"                                              
[13] "brandB:sourcePhonevs.not:typereturn"                                                
[14] "brandB:sourceiOSNative:typenew:COND2Reduced"                              
[15] "brandB:sourceAndroidNative:typereturn:COND2Reduced"                       
[16] "brandB:sourceumami:typereturn:COND2Reduced"                               
[17] "brandB:sourceAndroidNative:typenew:COND1Delivery"                           
[18] "brandA:sourceAndroidNative:typenew:COND1Delivery"                          
[19] "brandA:sourceiOSNative:typenew:COND1Delivery"                              
[20] "brandA:sourceAndroidNative:typereturn:COND1Delivery"                       
[21] "brandB:sourceiOSNative:typereturn:COND1Delivery"                            
[22] "brandB:sourceumami:typereturn:COND1Delivery"                                
[23] "brandB:sourceAndroidNative:typenew:COND1Service"                            
[24] "brandB:sourceiOSNative:typenew:COND1Service"                                
[25] "brandB:sourceiOSNative:typereturn:COND1Service"                             
[26] "brandA:sourceiOSNative:typereturn:COND1Service"                            
[27] "brandB:sourceumami:typereturn:COND1Service"                                 
[28] "brandA:sourceiOSNative:typenew:COND2Reduced:COND1Delivery"       
[29] "brandA:sourceAndroidNative:typereturn:COND2Reduced:COND1Delivery"
[30] "brandB:sourceiOSNative:typereturn:COND2Reduced:COND1Delivery"     
[31] "brandB:sourceAndroidNative:typenew:COND2Reduced:COND1Service"     
[32] "brandA:sourceAndroidNative:typenew:COND2Reduced:COND1Service"    
[33] "brandA:sourceiOSNative:typenew:COND2Reduced:COND1Service"        
[34] "brandA:sourceumami:typereturn:COND2Reduced:COND1Service"         
[35] "zi_sourcePhonevs.not"                                                                           
[36] "zi_typereturn"                                                                         
[37] "zi_sourcePhonevs.not:typereturn"                                                          
[38] "zi_brandB:sourceiOSNative:typenew:COND2Reduced"                           
[39] "zi_brandA:sourceiOSNative:typereturn:COND2Reduced"                       
[40] "zi_brandB:sourceumami:typereturn:COND2Reduced"                            
[41] "zi_brandA:sourceAndroidNative:typenew:COND1Delivery"                       
[42] "zi_brandA:sourceiOSNative:typenew:COND1Delivery"                           
[43] "zi_brandB:sourceiOSNative:typenew:COND1Service"                             
[44] "zi_brandA:sourceiOSNative:typenew:COND2Reduced:COND1Delivery"    
[45] "zi_brandB:sourceumami:typereturn:COND2Reduced:COND1Delivery"      
[46] "zi_brandA:sourceAndroidNative:typenew:COND2Reduced:COND1Service" 
[47] "zi_brandB:sourceiOSNative:typenew:COND2Reduced:COND1Service"      
[48] "zi_brandA:sourceiOSNative:typenew:COND2Reduced:COND1Service"