Labelling individual points with text is an important kind of annotation, but it is not the only useful technique. To offset the text a little, which you can do with the nudge_x and nudge_y Text to overlap with the points (or bars etc). Often you want to label existing points on the plot, but you donвЂ™t want the Unlike the aesthetics these only take single values, so they must be the same for all labels: In addition to the various aesthetics, geom_text() has three parameters that you can specify. The ggplot2 package does allow you to map data values to the aesthetics used by geom_text(), but you should use restraint: it is hard to perceive the relationship between variables mapped to these aesthetics, and rarely useful to do so. (There are 72.27 pts in a inch, so to convert from points to mm, justДЄngle specifies the rotation of the text in degrees. The reason for this choice is that it makes it the units forДЇont sizes consistent with how other sizes are specified in ggplot2. Ggplot2 specifies the size in millimeters (mm), rather than the usual The font size is controlled by the size aesthetic. 'top-left', 'top-right', 'center' ) ) ggplot ( df, aes ( x, y ) ) + geom_text ( aes (label = text ) ) ggplot ( df, aes ( x, y ) ) + geom_text ( aes (label = text ), vjust = 'inward', hjust = 'inward' ) Text = c ( 'bottom-left', 'bottom-right', The fontface aesthetic specifies the face, and can take three values: вЂњplainвЂќ (the default), вЂњboldвЂќ or вЂњitalicвЂќ. Them and see which works best for your needs. GD-independent plots by rendering all text as polygons.Д¬onverts fonts to a standard format that all devices can use.Д«oth approaches have pros and cons, so you will to need to try both of Two packages simplify the quandary a bit: Same way so if you want a font to work everywhere you need to configure Unfortunately, the devices do not specify fonts in the The plot to the screen, whereas file devices such as png() and pdf() write (for Macs), x11() (mostly for Linux) and RStudioGD() (within RStudio) draw Two groups of GDs: screen devices such as windows() (for Windows), quartz() Text drawing is handled differently by each graphics device (GD). The reason that it can be tricky to use system fonts in a plot is that

What size is the end screen annotation