Can I get the nice visuals of R-Markdown plotting using non-markdown R?-CodePudding

I am trying to get my ggplots to look as nice as possible. When using R Markdown, the plot comes out with extremely smooth lines:

However, when using standard R (still in RStudio, if that matters), the same plot comes out like this:

(It may not look that bad here, but the wobbly lines can often get very choppy in practice.)

I have tried to include an MWE for the plot, I'm not sure if I need to include anything about my R-Markdown settings. They are pretty fundamental, nothing crazy, as I am not particularly confident in R-Markdown.

if (!require("pacman")) install.packages("pacman")
pacman::p_load(tidyverse, dplyr, ggplot2)

x <- 0:10
demand <- function(x) 10 - x
supply <- function(x) 1   x
ggplot(data.frame(x = c(0:10)), aes(x))  
  scale_x_continuous(limits = c(0, 10.5), expand = c(0, 0), breaks = seq(0, 10, 1))  
  scale_y_continuous(limits = c(0, 10.5), expand = c(0, 0), breaks = seq(0, 10, 1))  
  labs(x = "Q", y = "P")  
  stat_function(aes(x), fun = supply, size = 1)   # supply function
  stat_function(aes(x), fun = demand, size = 1)

I don't want to use R-Markdown every time I produce a plot, for reasons I don't want to go into. Is there some way to get the nice visual output in regular R?

Much thanks in advance, extra thanks for politeness.

CodePudding user response：

You can save it with ggsave to have a high-quality image. ggsave will save the last plot you ran. Here is an example:

ggsave("myplot.png", device = "png",
       width = 10, height = 4, units = "in", dpi = 600, type = "cairo-png")

It will still look funny when you see preview in RStudio, but the image will be saved with smooth lines. Here is the image I saved with the code above:

In deviceyou can choose how you want to save the plot. From the function documentation:

Device to use. Can either be a device function (e.g. png()), or one of "eps", "ps", "tex" (pictex), "pdf", "jpeg", "tiff", "png", "bmp", "svg" or "wmf" (windows only).