"Removing" the violin plot from `ggbetweenstats` does not really remove it, but rather adds a thin line on the plot. about ggstatsplot

[luk-brue]

Maybe the accepted answer on this SO question is an option to implement the "removing geoms" functionality. It really removes geoms from the grid object instead of changing their attributes to hide them.
https://stackoverflow.com/questions/13407236/remove-a-layer-from-a-ggplot2-chart

Here is how it looks on the reprex from above: It solves the problem.

# Function definition from SO:
remove_geom <- function(ggplot2_object, geom_type) {
  # Delete layers that match the requested type.
  layers <- lapply(ggplot2_object$layers, function(x) {
    if (class(x$geom)[1] == geom_type) {
      NULL
    } else {
      x
    }
  })
  # Delete the unwanted layers.
  layers <- layers[!sapply(layers, is.null)]
  ggplot2_object$layers <- layers
  ggplot2_object
}

p <- ggstatsplot::ggbetweenstats(outlier_data, group, response)
remove_geom(p, "GeomViolin")

[IndrajeetPatil]

It's the same issue as #895

You just need to pass: violin.args = list(width = 0, linewidth = 0) to solve the problem.

[luk-brue]

I tested the linewidth = 0 addition, but for me, it does not fix the problem at all:

ggstatsplot::ggbetweenstats(outlier_data, group, response,
                            violin.args = list(width = 0, linewidth = 0))

If you make it blue, you can clearly see that the line belongs to the violin plot.

ggstatsplot::ggbetweenstats(outlier_data, group, response,
                            violin.args = list(width = 0, 
                                               linewidth = 0,
                                               color = "blue"))

[IndrajeetPatil]

I've already documented this in #900. Just waiting to merge it.

[luk-brue]

Thanks, I have looked at it. I can only see that you documented the linewidth = 0 argument in your commit with the message "correct way to remove violin plot".

Please read my comment above where I say that this linewidth = 0 argument does not work for me.
Do you have any idea why? Can you reproduce this behaviour?