Compute a Sequence of Equally Spaced Round values in R Programming – pretty() Function

pretty() function in R Language is used to decide sequence of equally spaced round values.

Syntax: pretty(x, n) Parameters: x: It is defined as vector data n: length of resultant vector Returns: data vector of equal length interval

Example 1:

r

# Create example vector
# Apply pretty function to vector
x <- 1:50
pretty(x)

Output:

[1]  0 10 20 30 40 50

Example 2:

r

# Create example vector
x <- 1:50

# Apply pretty function to vector
pretty(x, n = 10)

Output:

 
[1]  0  5 10 15 20 25 30 35 40 45 50

Here n = 10 states that the interval vector consisting of ten intervals, i.e. n+1 elements. Example 3:

r

# Create example vectors
x <- 1:50
y <- 1:50

# Create plot of two vectors
plot(x, y,

     # Default axis labels
     main = " Axis Labels")

Output:

Example :

R

# Generate some data
x <- seq(0, 10, length.out = 100)
y <- sin(x)

# Create a plot of the data
plot(x, y, type = "l", col = "blue", lwd = 2, main = "Sine Function",
     xlab = "x", ylab = "y")

# Add tick marks to the x-axis
ticks <- pretty(x, n = 10)
axis(1, at = ticks, labels = round(ticks, 2))

output :