Using data.frame function, create a dataframe that contains names of people, age, weight and sex of those people and check whether mtcars is a data frame or not.

A data frame is a structure having 2 dimensions which contains data in the form or rows and columns.It is like a spreadsheet or dictionaries of series. To create a dataframe in R, we use data.frame function which combines all the input data and creates a dataframe.

Given in the question let us create the data of few people that contains names, age, weight and sex.

Name <- c("Sam","Frank","Amy")

Age <- c(22,25,26)

Weight <- c(150,165,120)

Sex <- c("M", "M", "F")

df <- data.frame (row.names = Name, Age, Weight, Sex)

df

Now to check whether mtcars is a data frame or not, we can check as the following.

is.data.frame(mtcars)

Output: True

Mtcars is a built in dataset in R which contains data of several cars of many companies with their features such as MPG, HP, vol, etc. Let us see the head of the data mtcars