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Populate worksheet

The first step of creating a sheet is done; let's populate it with some data now! summ, a data frame with some summary statistics on the two Excel sheets is already coded so you can take it from there.

This exercise is part of the course

Introduction to Importing Data in R

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Exercise instructions

  • Use writeWorksheet() to populate the "data_summary" sheet with the summ data frame.
  • Call saveWorkbook() to store the adapted Excel workbook as a new file, "summary.xlsx".

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Build connection to urbanpop.xlsx
my_book <- loadWorkbook("urbanpop.xlsx")

# Add a worksheet to my_book, named "data_summary"
createSheet(my_book, "data_summary")

# Create data frame: summ
sheets <- getSheets(my_book)[1:3]
dims <- sapply(sheets, function(x) dim(readWorksheet(my_book, sheet = x)), USE.NAMES = FALSE)
summ <- data.frame(sheets = sheets,
                   nrows = dims[1, ],
                   ncols = dims[2, ])

# Add data in summ to "data_summary" sheet
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# Save workbook as summary.xlsx
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