List the sheets of an Excel file
Before you can start importing from Excel, you should find out which sheets are available in the workbook. You can use the excel_sheets() function for this.
You will find the Excel file urbanpop.xlsx (view) in your working directory (type dir() to see it). This dataset contains urban population metrics for practically all countries in the world throughout time (Source: Gapminder). It contains three sheets for three different time periods. In each sheet, the first row contains the column names.
Questo esercizio fa parte del corso
Introduction to Importing Data in R
Istruzioni dell'esercizio
- Load the
readxlpackage usinglibrary(). It's already installed on DataCamp's servers. - Use
excel_sheets()to print out the names of the sheets inurbanpop.xlsx.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Load the readxl package
library(___)
# Print the names of all worksheets
___