Question: What does the ' str ( ) ) function in R do when applied to a data frame? q , Stacks the columns of the

What does the 'str()) function in R do when applied to a data frame?
q,
Stacks the columns of the data frame.
Sorts the data frame.
Displays the structure of the data frame.
Give numerical summaries
Converts the data frame to a string.Stacks the columns of the data frame.
What does the ' str ( ) ) function in R do when

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