Save a file in EPS format

ggplot_eps.R

### Hey, Alison, here's how you save a ggplot graph in EPS format.

# Load the ggplot library
library(ggplot2)

# Need some data.  We'll just make it up for now
obs = data.frame(
  user=factor(c("A", "B", "C", "D")),
  count=c(1, 2, 3, 4),
  money=c(0.12, 3.45, 6.78, 9.10))
  
# create our plot
p <- ggplot(obs) + geom_point(aes(x=count, y=money, color=user))

# save the plot to EPS
ggsave(filename="/Users/airvine/Desktop/that_one_chart.eps")