Labels and titles in R Programming - Mini Project: Build & Apply

Labels and titles

📖 Scenario: You are creating a simple plot to show the relationship between two variables in a dataset. To make the plot clear and easy to understand, you need to add labels to the axes and a title to the plot.

🎯 Goal: Build a basic scatter plot with proper axis labels and a main title using R.

📋 What You'll Learn

Create vectors for x and y data

Create variables for x-axis label, y-axis label, and plot title

Use the plot() function with labels and title

Print the plot with the correct labels and title

💡 Why This Matters

🌍 Real World

Adding clear labels and titles to graphs helps people understand data quickly, like in reports or presentations.

💼 Career

Data analysts and scientists often create plots with labels and titles to communicate insights clearly.

1

Create data vectors

Create two numeric vectors called x and y with these exact values: x = c(1, 2, 3, 4, 5) and y = c(2, 4, 6, 8, 10).

R Programming

# Create vectors x and y with the given values
# Your code here

Need a hint?

Use the c() function to create vectors in R.

2

Create label variables

Create three variables: x_label with value "X Axis", y_label with value "Y Axis", and main_title with value "Simple Scatter Plot".

R Programming

x <- c(1, 2, 3, 4, 5)
y <- c(2, 4, 6, 8, 10)
# Create x_label, y_label, and main_title variables
# Your code here

Need a hint?

Assign strings to variables using the <- operator.

3

Create the plot with labels and title

Use the plot() function with x and y as data, and add the labels using xlab = x_label, ylab = y_label, and main = main_title.

R Programming

x <- c(1, 2, 3, 4, 5)
y <- c(2, 4, 6, 8, 10)
x_label <- "X Axis"
y_label <- "Y Axis"
main_title <- "Simple Scatter Plot"
# Use plot() with x, y, xlab, ylab, and main
# Your code here

Need a hint?

The plot() function can take xlab, ylab, and main arguments for labels and title.

4

Display the plot

Run the code to display the scatter plot with the correct labels and title.

R Programming

x <- c(1, 2, 3, 4, 5)
y <- c(2, 4, 6, 8, 10)
x_label <- "X Axis"
y_label <- "Y Axis"
main_title <- "Simple Scatter Plot"
plot(x, y, xlab = x_label, ylab = y_label, main = main_title)
# Run the code to show the plot
# Your code here

Need a hint?

Just run the code to see the plot with labels and title.