Ggplot does not work if it is inside a for loop, although it works outside of it too

Question

I use the simple ggplot function, which works great outside the loop, but not inside, even if the iterative value does not interfere with the ggplot function. Why is this so?

Here is my code

x=1:7 y=1:7 df = data.frame(x=x,y=y) ggplot(df,aes(x,y))+geom_point() 

It works! But if ggplot is inside the for ... loop

 for (i in 1:5) { ggplot(df,aes(x,y))+geom_point() } 

it no longer works, what am I missing?

Answer 1

When in a for loop you must explicitly print create your ggplot object:

 for (i in 1:5) { print(ggplot(df,aes(x,y))+geom_point()) }