ggplot2 graph with color in the headline text. I find it a little hard to see the colors in this headline text, though. Let’s add tags to make the text bold, and let’s also add legend.position ...

Graph of median home values by Boston neighborhood, created with a custom ggplot2 function. Data from Zillow. I can still tweak the graph created by my function, using other ggplot commands.

See Bar and line graphs (ggplot2) for a few examples, or the The R Graphics Cookbook by Winston Chang for many more. Bar graphs To make a bar graph from the sample BOD data frame included with R ...