Helper function to save ggplot2 plots to files with consistent settings and error handling. Supports PNG, PDF, and SVG formats with configurable dimensions and resolution.
Usage
savePlotToFile(
plot,
file,
format = NULL,
width = 8L,
height = 6L,
dpi = 150L,
units = "in",
bg = "white"
)Arguments
- plot
A ggplot2 plot object to save. If NULL, returns FALSE.
- file
character. The file path to save the plot to.
- format
character. Output format: "png", "pdf", or "svg". Defaults to "png". If not specified, format is inferred from file extension.
- width
numeric. Plot width in inches. Defaults to 8.
- height
numeric. Plot height in inches. Defaults to 6.
- dpi
numeric. Resolution in dots per inch for raster formats. Defaults to 150 for good quality web/screen use. Use 300 for print.
- units
character. Units for width and height. Defaults to "in" (inches).
- bg
character. Background color. Defaults to "white".
See also
ggsave for the underlying save function
Examples
if (FALSE) { # \dontrun{
library(ggplot2)
p <- ggplot(mtcars, aes(mpg, wt)) + geom_point()
savePlotToFile(p, "my_plot.png")
savePlotToFile(p, "my_plot.pdf", format = "pdf")
savePlotToFile(p, "high_res.png", dpi = 300)
} # }