3rd Blog Post
Jordan Tanley 2022-06-29
3rd Blog: Coolest Thing I’ve Learned
One of the coolest things I’ve learned about programming in R is how to
use
ggplot2.
I’d used the package in the past, but never understood what I was doing.
Why all the + signs? What are all these weirdly named functions doing?
Now I have a better grasp of the how and the why behind it all. So
without further ado, here’s an example of some of the concepts of ggplot
that I learned this semester.
Example using ggplot2
# The initial dataset has state as row names. need to change this
library(tibble)
df <- tibble::rownames_to_column(USArrests, "State")
# set theme and load ggplot2 package
library(ggplot2)
theme_set(theme_classic())
# Plot
ggplot(df, aes(x=State, y=Murder)) +
geom_point(size=3) +
geom_segment(aes(x=State,
xend=State,
y=0,
yend=Murder)) +
labs(title="Lollipop Chart",
subtitle="State Vs Murder", y = "Murder arrests (per 100,000)") +
theme(axis.text.x = element_text(angle=65, vjust=0.6))
