Error in alpha: unused argument after loading other library kernlab

[danlooo]

Hello,

after loading another library like kernlab, I stumbled the following error message after trying to draw with geom_lv:

> library(ggplot2)
> library(lvplot)
> ggplot(mpg, aes(class, hwy)) + geom_lv()
Warning message:
In grSoftVersion() :
  unable to load shared object '/usr/local/lib/R/modules//R_X11.so':
  libXt.so.6: cannot open shared object file: No such file or directory
> ggplot(mpg, aes(class, hwy)) + geom_lv()
> library(kernlab)

Attaching package: ‘kernlab’

The following object is masked from ‘package:ggplot2’:

    alpha

> ggplot(mpg, aes(class, hwy)) + geom_lv()
Error in alpha(data$fill, data$alpha) : unused argument (data$alpha)

However, it worked before loading the library kernlab. Are there any namespace issues?

Code to reproduce (tested on the docker container with image rocker/tidyverse:4.1)

devtools::install_github("hadley/lvplot@8ce61c7", upgrade = "never")
install.packages("kernlab")

library(ggplot2)
library(lvplot)

ggplot(mpg, aes(class, hwy)) + geom_lv()

library(kernlab)
ggplot(mpg, aes(class, hwy)) + geom_lv()

Current workaround:

Do detach("package:kernlab", unload=TRUE) before and library(kernlab) after calling geom_lv

Thanks for any suggestions!

[hadley]

Minimal reprex:

library(ggplot2)
library(lvplot)
library(kernlab)
#> 
#> Attaching package: 'kernlab'
#> The following object is masked from 'package:ggplot2':
#> 
#>     alpha

ggplot(mpg, aes(class, hwy)) + geom_lv()
#> Warning: The following aesthetics were dropped during statistical transformation: y
#> ℹ This can happen when ggplot fails to infer the correct grouping structure in
#>   the data.
#> ℹ Did you forget to specify a `group` aesthetic or to convert a numerical
#>   variable into a factor?
#> Error in `geom_lv()`:
#> ! Problem while converting geom to grob.
#> ℹ Error occurred in the 1st layer.
#> Caused by error in `alpha()`:
#> ! unused argument (data$alpha)

^{Created on 2022-09-25 with reprex v2.0.2}