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R Line

Line plots in R are used to display data points connected by straight lines, useful for showing trends over time. The plot() function is used to create a line plot by specifying the type parameter as "l".

Key Topics

Line Plot Example

# Creating a line plot
x <- c(1, 2, 3, 4, 5)
y <- c(2, 3, 5, 7, 11)

plot(x, y, type = "l", main = "Line Plot", xlab = "X-axis", ylab = "Y-axis")

Output:

A line plot connecting the points (1, 2), (2, 3), (3, 5), (4, 7), and (5, 11).

Code Explanation: The plot() function creates a line plot with the type parameter set to "l", which stands for line.

Customizing Line Plot

Line plots can be customized by changing colors, line types, and adding points.

# Customizing the line plot
plot(x, y, type = "o", col = "red", lty = 2, pch = 16, 
     main = "Customized Line Plot", xlab = "X-axis", ylab = "Y-axis")

Output:

A red line plot with dashed lines and filled points.

Code Explanation: The type parameter "o" plots both lines and points. The col parameter sets the color to red, lty specifies a dashed line, and pch changes the point shape.

Key Takeaways

  • Use the plot() function with type = "l" to create a line plot.
  • Customizations include colors, line types, and adding points.
  • Line plots are ideal for visualizing trends over time.
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