Improve pie chart
The pie chart is a very common way to represent the distribution of a single categorical variable, but they can be more difficult to interpret than bar charts.
This is a pie chart of a dataset called pies that contains the favorite pie flavors of 98 people. Improve the representation of these data by constructing a bar chart that is ordered in descending order of count.
Latihan ini adalah bagian dari kursus
Exploratory Data Analysis in R
Petunjuk latihan
- Use the code provided to reorder the levels of
flavorso that they're in descending order by count. - Create a bar chart of
flavorand orient the labels vertically so that they're easier to read. The default coloring may look drab by comparison, so change thefillof the bars to"chartreuse".
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
# Put levels of flavor in descending order
lev <- c("apple", "key lime", "boston creme", "blueberry", "cherry", "pumpkin", "strawberry")
pies$flavor <- factor(pies$flavor, levels = lev)
# Create bar chart of flavor
ggplot(___, aes(x = ___)) +
geom_bar(fill = ___) +
theme(axis.text.x = element_text(angle = 90))