Exploratory analysis

We now perform an exploratory analysis to see how the data is distributed and to extract the preliminary knowledge. Let's start by checking the dataset using the str() function. This function returns a tight summary of the internal structure of an R object.

Ideally, only one line for each basic structure is displayed:

str(InputData)

The following results are returned:

'data.frame':  506 obs. of  13 variables: $ crim   : num  0.00632 0.02731 0.02729 0.03237 0.06905 ... $ zn     : num  18 0 0 0 0 0 12.5 12.5 12.5 12.5 ... $ indus  : num  2.31 7.07 7.07 2.18 2.18 2.18 7.87 7.87 7.8 ... $ chas   : int  0 0 0 0 0 0 0 0 0 0 ... $ nox    : num  0.538 0.469 0.469 0.458 0.458 0.458 0.524 ... $ rm     : num  6.58 6.42 7.18 7 7.15 ... $ age : ...

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