ggplot can't plot picture in other function

[skyraom]

In command line, ggplot(...) can plot a picture and show it in Rstudio, but when put the ggplot(...) in other function such as follows:

test_fun <- function() {
ggplot(...)
}

It will not show the plot in Rstudio.
but as shown in following:

plot_f <- ggplot(...)
test_fun <- function(plot_name) {
plot_name
}
test_fun(plot_f)

it could plot the image. why? Is it a bug?

[Flm]

test_fun <- function() {
ggplot(...)

print(test_fun)

}

[dvetsch75]

I am unable to reproduce your issue... what exactly are you trying to do? Are you trying to wrap a ggplot in your own function?

library(tidyverse)

test_fun <- function() {
    iris %>% 
        ggplot(aes(x = Sepal.Width, y = Sepal.Length)) + 
        geom_jitter()
}

test_fun()