Mapping and understanding data structure

This section involves understanding each and every attribute in depth, which is considered to be important for the dataset indicated:

1. Try to get a feel for the data as per the attribute structure by executing the following command:

> class(Autompg)
 [1] "data.frame"

The output shows that the dataset is merely a tabular format of a data frame.

2. Check the dimensions of the dataset by executing the following command:

> dim(Autompg)
[1] 398 9

This means that the dataset comprises 398 rows and 9 columns. The column structure is discussed in the first section.

3. View the column names of the dataset as follows to establish whether they correspond to the records included in the Excel file:

> colnames(Autompg)
 [1] "mpg" "cylinders" "displacement" "horsepower" "weight" "acceleration...