asp is a parameter of the plot() function in R Language is used to set aspect ratio of plots (Scatterplot and Barplot). Aspect ratio is defined as proportional relationship between width and height of the plot axes.
Syntax: plot(x, y, asp )
Parameters:
x, y: Coordinates of x and y axis
asp: Aspect ratio
Example 1:
# Set seed for reproducibility set.seed(86000)
# Create random x variable x <- runif(120)
# Create y variable correlated with x y <- x + runif(120)
# Plot without setting aspect ratio plot(x, y)
# Plot with asp = 5 plot(x, y, asp = 5)
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Output:
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Plot Without Aspect Ratio:
-
Plot with Aspect Ratio:
Example 2:
# Set seed for reproducibility set.seed(86000)
# Create random x variable x <- runif(120)
# Create y variable correlated with x y <- x + runif(120)
# Regular barplot barplot(x)
# Barplot with aspect ratio of 5 barplot(x, asp = 5)
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Output:
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Bar Plot Without Aspect Ratio:
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Bar Plot with Aspect Ratio:
Here, the asp option increases the width of the y-axis.