A … ... (" Unknown graphics device ' ", device, " ' ", call. The solution I think is to replace line 61 in the code quoted above with: # ' @section Saving images without ggsave(): # ' # ' In most cases `ggsave()` is the simplest way to save your plot, but # ' sometimes you may wish to save the plot by writing directly to a # ' graphics device. ... (" No graphics device defined for the file extension ' ", ext, ... # specify device when saving to a file with unknown extension # (for example a server supplied temporary file) It also guesses the type of graphics device … An implementation of the Grammar of Graphics in R. Contribute to wch/ggplot2 development by creating an account on GitHub. Graphics devices for BMP, JPEG, PNG and TIFF format bitmap files. Saving images without ggsave() In most cases ggsave() is the simplest way to save your plot, but sometimes you may wish to save the plot by writing directly to a graphics device. It defaults to saving the last plot that you displayed, using the size of the current graphics device. In theory, if you specify a width and a height and a DPI, ggsave() will generate a file with those dimensions. Here is some example data and code to reproduce the error: However, if you place the PNG into Word, PowerPoint, InDesign, or any other programs, the graphic will be too large, for reasons unknown. It defaults to saving the last plot that you displayed, using the size of the current graphics device. Hi! = FALSE)} dev} # ' @export: grid.draw.ggplot <-function (x, recording = TRUE) This is a suggested implementation for specifying a file extension in ggsave to allow device matching (pdf, png, jpg, etc.) I wrote a function that I pass arguments to, and that is supposed to produce and then save the results with ggsave(). Warnings. To do this, you can open a regular R graphics device such as png() or pdf(), print the plot, and then close the device using dev.off(). It also guesses the type of graphics device … Note that by default the width and height values are in pixels not inches. A plot device is opened: nothing is returned to the R interpreter. This means the only argument you need to supply is the filename. It’s also possible to make a ggplot and to save it from the screen using the function ggsave(): # 1. ggsave() is a convenient function for saving a plot. Support graphics devices that use the file argument instead of fileneame in ggsave() (@bwiernik, #3810) Default discrete color scales are now configurable through the options() of ggplot2.discrete.colour and ggplot2.discrete.fill. I am having trouble with ggsave() from the ggplot2 library. R’s default PNG-writing engine can sometimes have issues with correctly setting the resolution. ggsave() is a convenient function for saving a plot. If which = 1 it opens a new device and selects that.") It also guesses the type of graphics device from the extension. When set to a character vector of colour codes (or list of … Thank you for your effort!. ggsave is a convenient function for saving the last plot that you displayed. I tried plotting_fun3(df[,9], q_column_name = "q8") but it did not work, what do I do wrong? (This is documented behavior: "dev.set makes the specified device the active device. Since I don't know some of the functions you used very well, how am I supposed to enter the function inputs? Unknown resolutions in BMP files are recorded as 72 ppi. for filenames without extension. ... * `ggsave()` has been simplified a little to make it easier to maintain. Our examples: one pre-existing image and one dynamically generated plot; Default settings for including images and figures in R Markdown; Use fig.width and fig.height for R-generated figures only; Arguments out.width and out.height apply to both existing images and R-generated figures; Use dpi to change the resolution of images and figures; The fig.retina argument is a resolution multiplier If there is no device with that number, it is equivalent to dev.next. Value. ggsave: save the last ggplot.