Get the First parts of a Data Set in R Programming – head() Function
head()
function in R Language is used to get the first parts of a vector, matrix, table, data frame or function.
Syntax: head(x, n)
Parameters:
x: specified data types
n: number of row need to be printed
Example 1:
# R program to illustrate # head function # Calling the head() function to # get the iris demo dataset head(iris) |
Output:
Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 setosa 3 4.7 3.2 1.3 0.2 setosa 4 4.6 3.1 1.5 0.2 setosa 5 5.0 3.6 1.4 0.2 setosa 6 5.4 3.9 1.7 0.4 setosa
Example 2:
# R program to illustrate # head function # Calling the head() function to # get the iris demo dataset in # 4 rows head(iris, 4 ) |
Output:
Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9 3.0 1.4 0.2 setosa 3 4.7 3.2 1.3 0.2 setosa 4 4.6 3.1 1.5 0.2 setosa
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