Issues with seeing data points in ggplot as a .pdf

Hi, and welcome!

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I'm on Catalina and haven't noticed this. Is it just ggplot pdfs? Can the same PC users see pdf files produced outside of R? Is this happening in the R gui, command line R and in RStudio? Or only one.

Try using the following code


hull_cyl <- mtcars %>%
  group_by(cyl) %>%
  slice(chull(mpg, wt))

# Define the scatterplot
p <- ggplot(mtcars, aes(mpg, wt)) + geom_point(shape = 21)

# Update the plot with a fill group, and overlay the new hulls

p + aes(fill = factor(cyl)) + geom_polygon(data = hull_cyl, alpha = 0.5)

Created on 2020-03-29 by the reprex package (v0.3.0)

and see if the same results occur.

If they do, please comeback with the output of the sessionInfo() function, which looks like below. It will help check whether there are version problems.

#> R version 3.6.2 (2019-12-12)
#> Platform: x86_64-apple-darwin15.6.0 (64-bit)
#> Running under: macOS Catalina 10.15.3
#> Matrix products: default
#> BLAS:   /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRblas.0.dylib
#> LAPACK: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRlapack.dylib
#> locale:
#> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
#> attached base packages:
#> [1] stats     graphics  grDevices utils     datasets  methods   base     
#> loaded via a namespace (and not attached):
#>  [1] compiler_3.6.2  magrittr_1.5    tools_3.6.2     htmltools_0.4.0
#>  [5] yaml_2.2.1      Rcpp_1.0.4      stringi_1.4.6   rmarkdown_2.1  
#>  [9] highr_0.8       knitr_1.28      stringr_1.4.0   xfun_0.12      
#> [13] digest_0.6.25   rlang_0.4.5     evaluate_0.14

Created on 2020-03-29 by the reprex package (v0.3.0)