Putting a boundary around marquee_grob

[petermott]

I want to add a marquee_grob to a rmarkdown document using RStudio, but on its own, not as part of anything bigger. The problem is I don't know how to set the grob to fit around the text. Here is an example:

library(patchwork)
library(marquee)
library(ggplot2)
text  <-  "
 ```stan_glm
  family:       binomial [logit]
  formula:      switch ~ dist100
  observations: 3020
  predictors:   2
 ------
             Median MAD_SD
 (Intercept)  0.61   0.06 
 dist100     -0.62   0.10 
 
 ------
 * For help interpreting the printed output see ?print.stanreg
 * For info on the priors used see ?prior_summary.stanreg```"

grob <- marquee_grob(text,
                     force_body_margin = TRUE,
                     style = modify_style(classic_style(base_size=12), "cb", lineheight=1),
                     )
g = wrap_elements(panel=grob)
ggsave("a_grob.png", g)

The problem is the text sits at the top of a much deeper frame. How do I trim the frame to fit the text and nothing more?

[petermott]

I can no longer reproduce this.