gl() function in
R Language is used to generate factors by specifying the pattern of their levels.
Syntax:
gl(x, k, length, labels, ordered)
Parameters:
x: Number of levels
k: Number of replications
length: Length of result
labels: Labels for the vector(optional)
ordered: Boolean value to order the levels
Example 1:
Output:
[1] 1 1 1 1 1 2 2 2 2 2
Levels: 1 2
[1] 1 1 1 1 2 2 2 2 3 3 3 3
Levels: 1 2 3
Example 2:
Output:
[1] a a a a b b b b c c c c
Levels: a b c d e f g h i j k l
[1] a a a a b b b b c c c c
Levels: a < b < c < d < e < f < g < h < i < j < k < l
