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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.

Diese Übung ist Teil des Kurses

Introduction to Importing Data in R

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Anleitung zur Übung

  • 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".

Interaktive Übung

Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.

# 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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