![]() ![]() This argument will be ignored if type = "quartz". Usage writegraph ( graph, file, format c ('edgelist', 'pajek', 'ncol', 'lgl', 'graphml', 'dimacs', 'gml', 'dot', 'leda'). Other options are "rle", "lzw", "jpeg", "zip", "lzw+p" and "zip+p". R Documentation Writing the graph to a file in some format Description writegraph is a general function for exporting graphs to foreign file formats, however not many formats are implemented right now. This function allows you to set the compression type, which defaults to "none", with the compression argument. Last, you can save a plot to TIFF (Tagged Image File Format) with the tiff function. Third, you can save a plot to BMP (Windows bitmap) with the bmp function. Second, for saving plots in JPEG, you can use the jpeg function, which also allows you to set the quality of the image as percentage with the quality argument (75% by default). This image file format is known to weight less than JPEG with better quality, as it supports transparent backgrounds. ![]() If you set the graphic device to a high-resolution ( res = 200), you will need to modify height and width of the corresponding function and the margins of your plot with the par function in order to avoid losing the original formatting and layout.įirst, the png function allows you to save an image to a Portable Network Graphics file. Note that you can convert inches to centimeters dividing by 2.54. Width = 8, height = 7, # Width and height in inchesĬolormodel = "cmyk" # Color model (cmyk is required for most publications) You can also change the width and height (in inches) of the output plot, the paper and point size, or modify the background color, as the PDF plot will have a transparent background, or the color model, among other graphical parameters. However, if you need to edit the image after saving in order to add some decoration or perform some modifications you should use SVG.įirst, in order to save a plot as PDF in R you will need to open the graphics device with the pdf function, create the plot you desire and finally, close the opened device with the dev.off function. The PDF format for saving images is the most used for creating scientific documents, as they are easy to add to LaTeX and maintain the resolution even if you zoom in. Lines(data$var2, as.numeric(data$group), col = 2)Īxis(2, labels = as.character(data$group), at = as.Save plot in R as PDF, SVG or postscript (PS) Plot(data$var1, as.numeric(data$group), type = "l", Lines(as.numeric(data$group), data$var2, col = 2)Īxis(1, labels = as.character(data$group), at = as.numeric(data$group)) Plot(as.numeric(data$group), data$var1, type = "l", ![]() You can set the factor variable on the X-axis or on the Y-axis: par(mfrow = c(1, 2)) If you want to plot the data as a line graph in R you can transform the factor variable into numeric with the is.numeric function and create the plot. Consider the following sample data: # Dataĭata <- ame(group = as.factor(c("Group 1", "Group 2", "Group 3")), ![]() In addition to creating line charts with numerical data, it is also possible to create them with a categorical variable. Matplot(data, type = "l", main = "matplot function") You can plot all the columns at once with the function: # Plot all columns at once The matplot and matlines functionsĪ better approach when dealing with multiple variables inside a data frame or a matrix is the matplot function. Note that the lines function is not designed to create a plot by itself, but to add a new layer over a already created plot. ![]()
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