Exercise: Determine number of elements in data frame

Build a data frame from vectors

Create and convert tibbles

Extract or replace columns in a data frame using `$`

Determine the size of a data frame

Select first or last rows of a data frame

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Output

                              survived    sex age passengerClass
Allen, Miss. Elisabeth Walton      yes female  29            1st
 [ reached 'max' / getOption("max.print") -- omitted 1308 rows ]

Determine the number of data values in the TitanicSurvival data frame above given as the number of rows multiplied by the number of columns.

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Output

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Determine the size of a data frame

Build a data frame from vectors

Create and convert tibbles

Extract or replace columns in a data frame using `$`

Determine the size of a data frame

Select first or last rows of a data frame

Exercise: Determine number of elements in data frame

Output

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Data Frames and Tibbles

Build a data frame from vectors

Create and convert tibbles

Extract or replace columns in a data frame using `$`

Determine the size of a data frame

Select first or last rows of a data frame

Get started with your free account.

Data Frames and Tibbles

Build a data frame from vectors

Create and convert tibbles

Extract or replace columns in a data frame using `$`

Determine the size of a data frame

Select first or last rows of a data frame

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